Guides
How the calculators are built, and how to use the PDF tools for a size limit. Each note links to the tool it describes.
How a SIP calculator works, with the formula Indian sites actually use
The monthly SIP formula, a worked ₹5,000 example, and what step-up and inflation change.
SIP, FD, RD and PPF: which calculator to open first
How the four Indian savings tools differ, and a fair way to compare the same monthly amount.
How to compress a PDF toward 100KB or 200KB in the browser
What ClickZM's PDF compressor does for exam and KYC uploads, and what it cannot keep.
New vs old income-tax regime for FY 2026-27
The slabs Budget 2026 left unchanged, the ₹12 lakh rebate, and when old-regime deductions still win.
How a fixed-rate mortgage payment is calculated
The monthly principal-and-interest formula, a $200,000 example, and what tax and insurance do to the payment.
How to use PDF to Word
PDF to Word. Convert PDF to an editable DOCX file. Text, paragraphs, headings and page breaks are kept, and bold or larger text is detected from the font.
How to use Word to PDF
Word to PDF. Turn a DOCX document into a PDF. No. Only .docx (Word 2007 and later) can be read in the browser.
How to use PDF to JPG
PDF to JPG. Every PDF page as a JPEG image. Scale 1 renders at 72 DPI, 1.5 at 108 DPI and 2 at 144 DPI. Use a higher scale for printing or reading small text.
How to use JPG to PDF
JPG to PDF. Combine JPG photos into one PDF. No. JPEG files are copied into the PDF byte for byte; only the page size and position change.
How to use PDF to PNG
PDF to PNG. Lossless PNG image of every page. PNG is lossless and keeps text and line art perfectly sharp, but files are larger.
How to use PNG to PDF
PNG to PDF. Turn PNG images into a PDF. Yes. PNG images are embedded with their alpha channel, so transparent areas show the page colour (white).
How to use Merge PDF
Merge PDF. Combine several PDFs into one file. There is no fixed limit; it depends on your device memory.
How to use Split PDF
Split PDF. Split by ranges, every N pages or each page. Use commas between parts and a hyphen for a range: 1-3, 7, 10-12 creates three files.
How to use Compress PDF
Compress PDF. Shrink PDF file size, e.g. under 200 KB. Strong and Extreme modes turn each page into an image, which is how they reach small targets.
How to use Unlock PDF
Unlock PDF. Remove a PDF password you know. No. You must know the password. Guessing or breaking passwords on files you do not own is not something this tool…
How to use Protect PDF
Protect PDF. Add AES-256 password protection. AES-256 (PDF 2.0, revision 6), the strongest standard PDF encryption.
How to use Rotate PDF
Rotate PDF. Rotate all or selected pages. Yes. Type page numbers or ranges such as 2, 4-6; leave the box empty to rotate every page.
How to use Delete PDF Pages
Delete PDF Pages. Remove pages you do not need. Your original file is never changed; the result is a new copy. Load the original again to start over.
How to use Extract PDF Pages
Extract PDF Pages. Save selected pages as a new PDF. Yes. Tick 'One file per page' to get a ZIP of single-page PDFs.
How to use Reorder PDF Pages
Reorder PDF Pages. Drag pages into a new order. Yes. Enter the order as numbers, e.g. 3, 1, 2, 4-10, and apply it.
How to use PDF Page Counter
PDF Page Counter. Count pages in one or many PDFs. Yes. Drop a whole folder's worth of PDFs; you get a table with the count for each file and the grand total.
How to use PDF to Excel
PDF to Excel. Extract PDF tables to an XLSX file. Simple tables with aligned columns convert well.
How to use Excel to PDF
Excel to PDF. Turn XLSX sheets into a PDF table. The last saved result of each formula is shown, exactly as Excel stored it.
How to use PDF to PowerPoint
PDF to PowerPoint. One slide per PDF page as PPTX. The page is placed as an image, so text is not editable.
How to use PowerPoint to PDF
PowerPoint to PDF. Convert PPTX slides to PDF pages. No. Animations, transitions, themes and SmartArt are not converted; the text and images on each slide…
How to use PDF to Text
PDF to Text. Extract all text from a PDF. Some PDFs store text in drawing order rather than reading order, especially multi-column layouts.
How to use Text to PDF
Text to PDF. Type or paste text and save as PDF. Yes for Latin, Greek and Cyrillic scripts, using an embedded Noto Sans font.
How to use PDF Watermark
PDF Watermark. Stamp text like CONFIDENTIAL on pages. A text watermark is part of the page content but can be removed with PDF editors.
How to use Remove PDF Watermark
Remove PDF Watermark. Strip standard watermark layers. If the watermark was flattened into the page artwork or a scanned image, there is no separate object…
How to use PDF Metadata Viewer
PDF Metadata Viewer. View and edit title, author, dates. Yes. Click Clear all fields and save; title, author, subject, keywords, creator and producer are…
How to use PDF Signature Tool
PDF Signature Tool. Draw, type or upload a signature. It is a simple electronic signature, accepted for many everyday agreements in the US (ESIGN Act), EU…
How to use Add Page Numbers to PDF
Add Page Numbers to PDF. Number pages in any position. Yes. Set 'Start on page' to 2 and the numbering begins on the second page; set the first number to 1…
How to use Crop PDF
Crop PDF. Trim margins from PDF pages. No. Like Acrobat, cropping sets the page's CropBox, so viewers and printers show only the cropped area while the…
How to use Compare PDF
Compare PDF. Highlight text differences in two PDFs. No. It compares the text content, which is what matters for contracts and drafts.
How to use Repair PDF
Repair PDF. Fix damaged or unreadable PDF files. No. If the file was truncated during download, the missing part is gone.
How to use Compress PDF to 100 KB
Compress PDF to 100 KB. Shrink a PDF to 100 KB or less. No. Reaching a fixed size means each page is saved as an image, so the text can no longer be selected…
How to use Compress PDF to 200 KB
Compress PDF to 200 KB. Shrink a PDF to 200 KB or less. No. Reaching a fixed size means each page is saved as an image, so the text can no longer be selected…
How to use Compress PDF to 500 KB
Compress PDF to 500 KB. Shrink a PDF to 500 KB or less. No. Reaching a fixed size means each page is saved as an image, so the text can no longer be selected…
How to use Compress PDF to 1 MB
Compress PDF to 1 MB. Shrink a PDF to 1 MB or less. No. Reaching a fixed size means each page is saved as an image, so the text can no longer be selected or…
How to use Image Compressor
Image Compressor. Shrink JPG, PNG and WebP file size. Phone photos usually shrink 60–85% at quality 75 with no visible difference.
How to use Image Resizer
Image Resizer. Resize by pixels or percentage. No. Enlarging adds pixels by interpolation, so it looks softer.
How to use Image Cropper
Image Cropper. Crop to any area or aspect ratio. Yes. Type the X, Y, width and height of the crop area in pixels.
How to use Image to JPG
Image to JPG. Convert PNG, WebP, GIF, BMP or HEIC to JPG. Yes. HEIC files are decoded in the browser and saved as standard JPGs that open everywhere.
How to use JPG to PNG
JPG to PNG. Convert JPG images to PNG. No. It keeps the quality the JPG already has; detail lost to JPEG compression does not come back.
How to use PNG to JPG
PNG to JPG. Convert PNG images to JPG. JPG cannot store transparency, so transparent pixels are filled with the background colour you pick (white by default).
How to use JPG to WebP
JPG to WebP. Convert JPG images to WebP. Yes. Chrome, Edge, Firefox, Safari 14+ and Opera all display WebP.
How to use WebP to JPG
WebP to JPG. Convert WebP images to JPG. Some apps, printers and upload forms still reject WebP. JPG is accepted everywhere.
How to use PNG to WebP
PNG to WebP. Convert PNG images to WebP. Yes. Both lossy and lossless WebP support an alpha channel.
How to use WebP to PNG
WebP to PNG. Convert WebP images to PNG. No. PNG is lossless, so the result looks exactly like the WebP.
How to use Image to Base64
Image to Base64. Encode an image as a Base64 data URI. For very small icons (under 2–4 KB) in emails or CSS.
How to use Base64 to Image
Base64 to Image. Decode Base64 back to an image file. No. Raw Base64 works too; the format is detected from the decoded file signature.
How to use Image to PDF
Image to PDF. Combine any images into a PDF. This tool puts one image per page. For a grid, make a collage with Photo Collage Maker first and convert that.
How to use Remove Image Background
Remove Image Background. Transparent PNG, the model runs locally. The model (about 40 MB) downloads once and is then cached by your browser, so later images…
How to use Image Color Picker
Image Color Picker. Pick HEX and RGB colours from a photo. Pixels are grouped by similar colour (median-cut quantisation) and the largest groups are shown…
How to use Image Rotator
Image Rotator. Rotate 90°, 180° or any angle. PNG output is lossless. JPG output is re-encoded at quality 92, which is visually identical.
How to use Image Flipper
Image Flipper. Mirror horizontally or vertically. Front cameras save a mirrored view, so text appears backwards. A horizontal flip fixes it.
How to use Image Watermark Tool
Image Watermark Tool. Add a text or logo watermark. Over part of the subject, at 30–50% opacity, is hardest to crop out.
How to use Image Blur Tool
Image Blur Tool. Blur a whole photo or a selected area. A strong blur (20 px or more) is safe for faces.
How to use Image Sharpen Tool
Image Sharpen Tool. Unsharp-mask sharpening for soft photos. No tool can restore detail that was never captured.
How to use Image Metadata Viewer
Image Metadata Viewer. Read EXIF, GPS, camera and IPTC data. Many apps and social networks strip GPS when you share a photo, and some phones only add it when…
How to use EXIF Data Remover
EXIF Data Remover. Strip GPS and camera data from photos. PNG stays lossless. JPGs are re-saved at quality 95, which is visually identical.
How to use Image DPI Changer
Image DPI Changer. Set 72, 150, 300 DPI without resampling. No. DPI only tells printers how big to print the pixels.
How to use Passport Photo Maker
Passport Photo Maker. US, India, UK, EU, Canada sizes + print sheet. Sizes and head-height guides follow official rules, but acceptance also depends on…
How to use Photo Collage Maker
Photo Collage Maker. Grid collages with 2–9 photos. Yes. Use the arrows on each photo to move it, and photos are cropped to fill their cell automatically.
How to use Image Upscaler
Image Upscaler. Enlarge 2× or 4× with edge sharpening. No. It uses multi-step bicubic-style interpolation plus sharpening.
How to use Image to Grayscale
Image to Grayscale. Black and white with luminance weights. Our eyes are most sensitive to green, so an equal average makes greens look too dark.
How to use Image Pixelator
Image Pixelator. Pixelate a photo or censor an area. Not with large blocks: each block keeps only one average colour, so the original detail is gone.
How to use Screenshot Editor
Screenshot Editor. Paste, annotate, blur and export. Yes. Press Ctrl+V (Cmd+V on Mac) anywhere on the page after taking a screenshot.
How to use Image Aspect Ratio Calculator
Image Aspect Ratio Calculator. Find ratios and keep proportions. 4:5, the tall portrait size Instagram uses for feed posts.
How to use Image Converter
Image Converter. HEIC, JPG, PNG and WebP. Yes. HEIC is decoded in the browser and saved as JPG or PNG.
How to use Image to Text (OCR)
Image to Text (OCR). Extract text from photos and scans. English, Spanish, French, German, Portuguese, Hindi and Arabic.
How to use Compress Image to 20 KB
Compress Image to 20 KB. Reduce a JPG or PNG photo to 20 KB or less. Online application portals cap photo and signature uploads to keep their servers fast.
How to use Compress Image to 50 KB
Compress Image to 50 KB. Reduce a JPG or PNG photo to 50 KB or less. Online application portals cap photo and signature uploads to keep their servers fast.
How to use Compress Image to 100 KB
Compress Image to 100 KB. Reduce a JPG or PNG photo to 100 KB or less. Online application portals cap photo and signature uploads to keep their servers fast.
How to use Compress Image to 200 KB
Compress Image to 200 KB. Reduce a JPG or PNG photo to 200 KB or less. Online application portals cap photo and signature uploads to keep their servers fast.
How to use Meta Tag Generator
Meta Tag Generator. Title, description, robots and canonical tags. No for Google, which has ignored the keywords tag since 2009.
How to use Meta Tag Analyzer
Meta Tag Analyzer. Check any page's title, meta and Open Graph. It reads the HTML the server sends.
How to use Meta Description Generator
Meta Description Generator. Write 150–160 character descriptions. Around 150–160 characters (roughly 920 pixels on desktop).
How to use Keyword Density Checker
Keyword Density Checker. 1-, 2- and 3-word keyword percentages. There is no ideal number. Most well-ranked pages use the main keyword around 0.5–2%.
How to use Word Counter for SEO
Word Counter for SEO. Words, headings length and keyword use. Enough to answer the query completely.
How to use SERP Snippet Preview
SERP Snippet Preview. Preview your Google result on desktop and mobile. Google truncates by width.
How to use Robots.txt Generator
Robots.txt Generator. Build and test robots.txt rules. No. It stops crawling. A blocked page can still be indexed from links.
How to use XML Sitemap Generator
XML Sitemap Generator. Crawl a site or paste URLs to build sitemap.xml. Up to 50,000 URLs or 50 MB uncompressed per file.
How to use Sitemap URL Extractor
Sitemap URL Extractor. List every URL in a sitemap.xml. Yes. Child sitemaps in an index are fetched too, up to 20 files.
How to use Schema Markup Generator
Schema Markup Generator. JSON-LD for Organization, LocalBusiness, Event…. Anywhere in the HTML, usually the <head>.
How to use FAQ Schema Generator
FAQ Schema Generator. FAQPage JSON-LD from your questions. Since 2023 Google shows FAQ rich results only for well-known government and health sites.
How to use Article Schema Generator
Article Schema Generator. Article, BlogPosting and NewsArticle JSON-LD. BlogPosting for blog posts, NewsArticle for news, and Article for everything else.
How to use Product Schema Generator
Product Schema Generator. Product, Offer and rating JSON-LD. Name plus either offers (price and currency), review or aggregateRating.
How to use Open Graph Generator
Open Graph Generator. og: tags for Facebook, LinkedIn, WhatsApp. 1200 × 630 px (1.91:1) works on every major network.
How to use Twitter Card Generator
Twitter Card Generator. twitter: meta tags with a card preview. X falls back to og:title, og:description and og:image, but it needs twitter:card to choose…
How to use Canonical URL Checker
Canonical URL Checker. Find and validate rel=canonical. Yes. A self-referencing canonical on each page prevents duplicates from URL parameters, tracking…
How to use URL Slug Generator
URL Slug Generator. Clean, SEO-friendly URL slugs. Hyphens. Google treats hyphens as word separators but joins words connected by underscores.
How to use Redirect Checker
Redirect Checker. Trace 301, 302 and meta-refresh chains. 301 (or 308) for permanent moves, which pass ranking signals to the new URL.
How to use HTTP Status Code Checker
HTTP Status Code Checker. Bulk check status codes for up to 50 URLs. A page that says 'not found' but returns status 200.
How to use Broken Link Checker
Broken Link Checker. Find 404s and dead links on a page. It checks all links on the page you enter.
How to use Website Word Counter
Website Word Counter. Count words on any web page. It counts all visible text, including navigation.
How to use Website Page Size Checker
Website Page Size Checker. HTML, CSS, JS and image weight. Under 1–2 MB loads quickly on mobile. The median web page is about 2.5 MB.
How to use Domain Age Checker
Domain Age Checker. Registration date and age from RDAP. Google says domain age itself is not a ranking factor.
How to use Website Authority Checker
Website Authority Checker. Popularity score from the Tranco ranking. No. Those are proprietary scores based on each company's link index.
How to use Hreflang Generator
Hreflang Generator. Alternate-language link tags. Yes. Every version must list all the others and itself.
How to use Keyword Research Tool
Keyword Research Tool. Google autocomplete keyword ideas and questions. No. Autocomplete shows what people search, not how often.
How to use Website SEO Audit
Website SEO Audit. On-page SEO score with fixes. No. It covers on-page and technical factors you control on that URL.
How to use PageSpeed Insights Analyzer
PageSpeed Insights Analyzer. Lighthouse scores and Core Web Vitals. LCP under 2.5 s, INP under 200 ms and CLS under 0.1 for at least 75% of visits.
How to use Word Counter
Word Counter. Words, characters, sentences and reading time. Any run of characters between spaces that contains a letter or number.
How to use Character Counter
Character Counter. Characters with and without spaces + limits. They count as one visible character here.
How to use Sentence Counter
Sentence Counter. Count sentences and average length. 15–20 words is easy to read for most audiences. Over 25 words on average makes text harder to follow.
How to use Paragraph Counter
Paragraph Counter. Count paragraphs and their lengths. Two to four sentences, or about 40–80 words. Short paragraphs are easier to scan on phones.
How to use Reading Time Calculator
Reading Time Calculator. Minutes to read or say any text. About 650–750 words at a natural speaking pace of 130–150 words per minute.
How to use Case Converter
Case Converter. UPPER, lower, Title, Sentence, camelCase…. AP-style rules: short articles, conjunctions and prepositions (a, and, of, the, to) stay lowercase…
How to use Uppercase Converter
Uppercase Converter. Convert text to ALL CAPS. Long passages in capitals are slower to read and can feel like shouting.
How to use Lowercase Converter
Lowercase Converter. Convert text to lowercase. Yes, everything becomes lowercase. Use Sentence Case Converter if you want sentences and 'I' capitalised.
How to use Title Case Converter
Title Case Converter. Capitalise headlines correctly. Yes. This tool follows the AP rule: articles, conjunctions and prepositions of three letters or fewer…
How to use Sentence Case Converter
Sentence Case Converter. Capitalise the first letter of each sentence. No, the tool cannot tell names from ordinary words, so capitalise proper nouns again…
How to use Remove Duplicate Lines
Remove Duplicate Lines. Delete repeated lines, keep the first. No. The first copy of each line stays where it was.
How to use Remove Extra Spaces
Remove Extra Spaces. Collapse double spaces and tabs. Only if you tick 'Join lines'. Otherwise paragraphs stay as they are.
How to use Text Reverser
Text Reverser. Reverse letters, words or lines. No. Text is split into user-visible characters (grapheme clusters), so emojis and flags stay whole.
How to use Text Sorter
Text Sorter. Sort lines A–Z, Z–A, by number or length. It compares numbers by value, so item2 comes before item10, unlike plain alphabetical sort.
How to use Text Repeater
Text Repeater. Repeat text up to 10,000 times. 10,000 repetitions, to keep your browser responsive.
How to use Find and Replace Text
Find and Replace Text. Replace words, with regex support. Turn on regex and search for \n, then enter the replacement (for example a comma and space).
How to use Text Compare Tool
Text Compare Tool. Show differences between two texts. Words for documents, lines for code and lists, characters for short strings like IDs.
How to use Word Frequency Counter
Word Frequency Counter. How often each word appears. Yes. Counting is case-insensitive, and apostrophes inside words (don't) are kept.
How to use Lorem Ipsum Generator
Lorem Ipsum Generator. Placeholder paragraphs, sentences or words. It is scrambled Latin from Cicero's 'De finibus bonorum et malorum' (45 BC), used as…
How to use Random Word Generator
Random Word Generator. Random nouns, verbs and adjectives. Yes, but for a passphrase use the Password Generator's passphrase mode, which also shows the…
How to use Text to Slug Converter
Text to Slug Converter. Convert lines of text to URL slugs. URLs with plain ASCII letters are easier to type and share, and avoid percent-encoding like…
How to use Text Cleaner
Text Cleaner. Strip HTML, smart quotes and hidden characters. Invisible characters such as U+200B that sneak in from websites and chat apps and can break…
How to use Remove Line Breaks
Remove Line Breaks. Join broken lines into paragraphs. Yes. Type a comma and space in the replacement box to turn a column into a comma-separated list.
How to use Alphabetical Order Sorter
Alphabetical Order Sorter. Alphabetise words or lines A–Z. By the first letter as typed. For surname order, write lists as 'Surname, First name'.
How to use Small Text Generator
Small Text Generator. ᴛɪɴʏ small caps, ˢᵘᵖᵉʳˢᶜʳᶦᵖᵗ and ₛᵤᵦₛ. Unicode does not have a superscript or subscript version of every letter (there is no…
How to use Fancy Text Generator
Fancy Text Generator. 𝐁𝐨𝐥𝐝, 𝒮𝒸𝓇𝒾𝓅𝓉, 𝔊𝔬𝔱𝔥𝔦𝔠 and 20+ styles. Older devices may lack fonts for rarer Unicode symbols, such as negative squared…
How to use Unicode Text Converter
Unicode Text Converter. Text ↔ U+ code points, \u escapes, HTML entities. A code point is a character's number (é is U+00E9).
How to use Upside Down Text Generator
Upside Down Text Generator. uʍop ǝpısdn text to copy. Yes. The characters are standard Unicode and paste into most apps.
How to use Morse Code Translator
Morse Code Translator. Text to Morse and back, with audio. ··· −−− ··· (dot dot dot, dash dash dash, dot dot dot), sent as one continuous signal.
How to use NATO Phonetic Alphabet Converter
NATO Phonetic Alphabet Converter. Spell anything Alfa Bravo Charlie. ICAO chose those spellings so speakers of other languages pronounce them correctly.
How to use JSON Formatter
JSON Formatter. Beautify JSON with 2, 4 spaces or tabs. No. Parsing and formatting use your browser's built-in JSON engine, so API keys and private data in…
How to use JSON Validator
JSON Validator. Find JSON errors by line and column. A trailing comma after the last item, single quotes instead of double quotes, unquoted keys, comments…
How to use JSON Minifier
JSON Minifier. Remove whitespace from JSON. No. Only spaces and line breaks outside strings are removed; parsing the result gives exactly the same values.
How to use JSON to XML
JSON to XML. Convert JSON objects to XML. Each array item becomes an element with the array's key as its name, e.g.
How to use JSON to CSV
JSON to CSV. Convert JSON arrays to a CSV file. All keys from all objects become columns; missing values are left empty.
How to use CSV to JSON
CSV to JSON. Convert CSV rows to a JSON array. Yes. Untick 'Detect numbers and booleans' to keep all values as strings, which preserves leading zeros like…
How to use XML Formatter
XML Formatter. Pretty-print and indent XML. Only whitespace between tags changes. Text, attributes, comments and CDATA are kept exactly.
How to use XML Validator
XML Validator. Check XML is well-formed. No. It checks well-formedness, which every XML document must pass. Schema validation is a further, optional check.
How to use HTML Formatter
HTML Formatter. Beautify and indent HTML. No. Only whitespace between tags changes; content inside <pre> and <textarea> is kept as it is.
How to use HTML Minifier
HTML Minifier. Remove comments and whitespace from HTML. Yes. Script and style blocks are left untouched; use the JavaScript and CSS minifiers for those.
How to use CSS Formatter
CSS Formatter. Beautify CSS with one rule per line. No. Property order is kept, because changing it can change which rule wins.
How to use CSS Minifier
CSS Minifier. Minify CSS with CSSO optimisation. No. CSSO only applies safe optimisations that keep the same rendering.
How to use JavaScript Minifier
JavaScript Minifier. Minify JS with Terser. Terser is the minifier used by webpack and Vite.
How to use JavaScript Beautifier
JavaScript Beautifier. Unminify and format JavaScript. No. Minifiers rename variables permanently; beautifying restores layout, not the original names.
How to use SQL Formatter
SQL Formatter. Format queries for MySQL, PostgreSQL and more. No. It only reformats text; it never connects to a database.
How to use SQL Minifier
SQL Minifier. Compress SQL onto one line. No. Quoted strings like 'New York' keep every space.
How to use Regex Tester
Regex Tester. Test JavaScript regular expressions live. JavaScript (ECMAScript 2024), the same engine as your browser and Node.js, including lookbehind…
How to use URL Encoder
URL Encoder. Percent-encode text for URLs. Use component mode for a single query value or path segment.
How to use URL Decoder
URL Decoder. Decode %20 and percent-encoded URLs. The text has a % not followed by two hex digits, or bytes that are not valid UTF-8.
How to use Base64 Encoder
Base64 Encoder. Encode text or files to Base64. No. It is an encoding that anyone can reverse. Never use it to protect passwords or secrets.
How to use Base64 Decoder
Base64 Decoder. Decode Base64 to text or a file. The data is probably binary (an image, PDF or compressed file) rather than text.
How to use JWT Decoder
JWT Decoder. Read JWT header, payload and expiry. Decoding happens in your browser and nothing is sent anywhere.
How to use UUID Generator
UUID Generator. UUID v4 and v7 in bulk. v7 starts with a timestamp, so new IDs sort in creation order, which keeps database indexes efficient.
How to use GUID Generator
GUID Generator. Windows-style GUIDs with braces. Yes. GUID is Microsoft's name for a UUID; the format is identical, often written in uppercase with braces.
How to use Hash Generator
Hash Generator. MD5, SHA-1, SHA-256, SHA-512 at once. SHA-256 for checksums and signatures.
How to use MD5 Generator
MD5 Generator. MD5 hash of text or a file. No. Collisions can be created deliberately, so do not use MD5 for passwords or signatures.
How to use SHA256 Generator
SHA256 Generator. SHA-256 hash of text or a file. 256 bits: 64 hexadecimal characters or 44 Base64 characters.
How to use HTML Entity Encoder
HTML Entity Encoder. Escape < > & " ' for HTML. Escaping these five characters is the core of HTML-context output encoding, but attributes, URLs and scripts…
How to use HTML Entity Decoder
HTML Entity Decoder. Turn & and © into characters. Both mean ©. The first is the decimal code point, the second the hexadecimal one.
How to use Markdown Editor
Markdown Editor. Write Markdown with live preview. GitHub Flavored Markdown: tables, task lists, strikethrough, fenced code blocks and autolinks.
How to use Markdown to HTML
Markdown to HTML. Convert Markdown to clean HTML. The preview is. The copied HTML is the raw conversion; sanitise it on your site if it comes from untrusted…
How to use HTML to Markdown
HTML to Markdown. Convert HTML pages to Markdown. Yes. Paste into the rich-text box and the formatting is converted to Markdown.
How to use YAML to JSON
YAML to JSON. Convert YAML config to JSON. Yes. &anchors and *aliases are resolved into the JSON.
How to use JSON to YAML
JSON to YAML. Convert JSON to readable YAML. No. JSON has no comments, so the YAML has none.
How to use Unix Timestamp Converter
Unix Timestamp Converter. Epoch seconds ↔ human date. 00:00:00 UTC on 1 January 1970. A Unix timestamp counts seconds since then, ignoring leap seconds.
How to use Cron Expression Generator
Cron Expression Generator. Build, explain and preview cron schedules. Minute (0–59), hour (0–23), day of month (1–31), month (1–12) and day of week (0–6…
How to use Regex Generator
Regex Generator. Build patterns for emails, dates, phones…. Not completely. The practical pattern here accepts real-world addresses; to be sure an address…
How to use Color Code Converter
Color Code Converter. HEX, RGB, HSL, HSV and CMYK. This is the standard formula conversion.
How to use CSS Gradient Generator
CSS Gradient Generator. Linear, radial and conic CSS gradients. No. Unprefixed gradients work in all browsers released since 2013.
How to use CSS Box Shadow Generator
CSS Box Shadow Generator. Layered box-shadow with live preview. Stack two or three shadows with increasing blur and low opacity, for example 0 1px 2px and 0…
How to use Percentage Calculator
Percentage Calculator. X% of Y, percent change, markup, discount. (new − old) ÷ old × 100. Going from 50 to 65 is (65 − 50) ÷ 50 × 100 = 30% increase.
How to use Age Calculator
Age Calculator. Exact age in years, months and days. Subtract the birth year from this year, then subtract one if your birthday has not happened yet this…
How to use BMI Calculator
BMI Calculator. Body mass index with WHO categories. 18.5 to 24.9 for adults. 25–29.9 is overweight and 30 or more is obesity (WHO).
How to use Scientific Calculator
Scientific Calculator. Trig, logs, powers, factorials, memory. −9. Exponents are applied before the minus sign, as in standard maths notation; type (−3)^2…
How to use Simple Calculator
Simple Calculator. Basic calculator with keyboard support. 50 + 10% adds 10% of 50 (result 55), like most desk calculators. On its own, 10% is 0.1.
How to use Date Calculator
Date Calculator. Days between dates, plus or minus days. The day count is the difference between the dates; add one if you count both the first and last day.
How to use Date Difference Calculator
Date Difference Calculator. Years, months and days between dates. Subtract the earlier date from the later one in days; from 1 January to 31 December in a…
How to use Time Calculator
Time Calculator. Add and subtract hours, minutes, seconds. Add the minutes; for every 60 minutes carry one hour. 1:50 + 0:20 = 2:10.
How to use GPA Calculator
GPA Calculator. 4.0-scale GPA with credits. 3.0 on the 4.0 scale.
How to use Grade Calculator
Grade Calculator. Weighted grade and final exam needed. Multiply each score by its weight, add them up and divide by the total weight.
How to use Fraction Calculator
Fraction Calculator. Add, subtract, multiply, divide fractions. Cross-multiply: a/b + c/d = (ad + bc) ÷ bd, then simplify.
How to use Average Calculator
Average Calculator. Mean, median, mode, range and std dev. The mean adds everything and divides by the count; the median is the middle value.
How to use Ratio Calculator
Ratio Calculator. Simplify, solve and scale ratios. Cross-multiply: if a:b = c:d then a × d = b × c, so d = b × c ÷ a.
How to use Square Root Calculator
Square Root Calculator. √x, cube and nth roots, simplified radicals. It is not a real number; it is an imaginary number. √−16 = 4i.
How to use Discount Calculator
Discount Calculator. Sale price, savings and stacked discounts. Multiply the price by 0.7. $50 × 0.7 = $35.
How to use Sales Tax Calculator
Sales Tax Calculator. US state rates as of 1 January 2026. Divide the total by (1 + rate). $108.25 ÷ 1.0825 = $100.
How to use Tip Calculator
Tip Calculator. Tip amount and per-person split. 15–20% for table service at restaurants is customary; 18–20% is common in cities.
How to use Split Bill Calculator
Split Bill Calculator. Divide a bill with tax and tip, to the cent. Usually before tax. Choose 'Tip on subtotal' or 'Tip on total' to match what your group…
How to use Fuel Cost Calculator
Fuel Cost Calculator. Trip fuel cost in km/L, L/100 km or MPG. L/100 km = 235.215 ÷ US MPG, or 282.481 ÷ UK MPG. 30 US MPG is 7.84 L/100 km.
How to use Speed Calculator
Speed Calculator. Speed from distance and time. Divide by 3.6. 72 km/h = 20 m/s.
How to use Distance Calculator
Distance Calculator. Between coordinates or from speed and time. No. It is the straight-line distance over the Earth's surface; roads are typically 20–40%…
How to use Hours Calculator
Hours Calculator. Timesheet hours with breaks and pay. Divide by 60. 7 hours 45 minutes is 7.75 hours.
How to use Time Duration Calculator
Time Duration Calculator. Duration between two dates and times. 8.5 hours (8 hours 30 minutes).
How to use Pregnancy Due Date Calculator
Pregnancy Due Date Calculator. Due date, current week and trimester. Only about 4% of babies arrive on their due date, but most arrive within two weeks…
How to use Calorie Calculator
Calorie Calculator. Daily calories to lose, keep or gain weight. About 500 kcal below maintenance loses roughly 0.5 kg (1 lb) a week.
How to use BMR Calculator
BMR Calculator. Basal metabolic rate, three equations. The calories your body burns at complete rest to stay alive: breathing, circulation and cell repair.
How to use TDEE Calculator
TDEE Calculator. Total daily energy expenditure. BMR is energy at rest; TDEE adds digestion and all movement and exercise, so it is your real daily calorie…
How to use Body Fat Calculator
Body Fat Calculator. US Navy tape-measure method. Men measure at the navel; women at the narrowest point. Keep the tape level and do not pull it tight.
How to use Ideal Weight Calculator
Ideal Weight Calculator. Robinson, Miller, Devine, Hamwi + BMI range. None is perfect; they were designed for medication dosing.
How to use Water Intake Calculator
Water Intake Calculator. Daily water based on weight and exercise. There is no single rule.
How to use Loan EMI Calculator
Loan EMI Calculator. Home, car and personal loan EMI. Interest is charged only on the outstanding principal each month, so the interest part falls and the…
How to use Mortgage Calculator
Mortgage Calculator. Fixed-rate payment, taxes, PMI and HOA. Many lenders keep total housing costs under 28% of gross monthly income.
How to use Compound Interest Calculator
Compound Interest Calculator. Future value with regular deposits. More frequent compounding earns slightly more: 7% compounded monthly is an effective 7.23%…
How to use Simple Interest Calculator
Simple Interest Calculator. I = P × R × T with yearly table. Simple interest is charged only on the original principal; compound interest also earns interest…
How to use SIP Calculator
SIP Calculator. Maturity, step-up and inflation-adjusted value. No. Mutual fund returns vary; 12% is an assumption for planning, not a promise.
How to use SWP Calculator
SWP Calculator. Systematic withdrawal plan balance and payouts. To keep the capital intact, withdraw less than the monthly return: at 8% a year, ₹10 lakh…
How to use FD Calculator
FD Calculator. Fixed deposit maturity with compounding. Yes. It is added to your income and taxed at your slab rate; banks deduct TDS above the threshold.
How to use RD Calculator
RD Calculator. Recurring deposit maturity. Each deposit earns compound interest for the months it stays invested, compounded quarterly.
How to use GST Calculator
GST Calculator. Add or remove 5%, 18% and 40% GST. From 22 September 2025 the main rates are 5% and 18%, with 40% for sin and luxury goods, plus special…
How to use VAT Calculator
VAT Calculator. Add or remove UK and EU VAT. Divide by 1.2: £120 ÷ 1.2 = £100. VAT is £120 × 1/6 = £20.
How to use Income Tax Calculator
Income Tax Calculator. India new vs old regime FY 2026-27. Under the new regime, yes for salaried people, thanks to the ₹75,000 standard deduction and the…
How to use Salary Calculator
Salary Calculator. Annual, monthly, weekly, daily, hourly pay. 40 hours × 52 weeks = 2,080 hours for a full-time job.
How to use Salary to Hourly Calculator
Salary to Hourly Calculator. Hourly rate from annual salary. About $24.04 an hour at 40 hours a week, 52 weeks a year.
How to use Hourly to Salary Calculator
Hourly to Salary Calculator. Annual pay from an hourly rate. $41,600 a year at 40 hours a week for 52 weeks.
How to use Profit Margin Calculator
Profit Margin Calculator. Gross margin and markup from cost and price. Margin is profit as a share of the selling price; markup is profit as a share of the…
How to use Markup Calculator
Markup Calculator. Selling price from cost and markup. Divide the cost by 0.7: $60 ÷ 0.7 = $85.71.
How to use ROI Calculator
ROI Calculator. Return on investment and annualised ROI. A 45% return over 3 years is very different from 45% in 1 year.
How to use Break-Even Calculator
Break-Even Calculator. Units and revenue to cover costs. The amount each sale contributes to fixed costs and profit: selling price minus variable cost per…
How to use Investment Calculator
Investment Calculator. Future value with monthly contributions. It compounds once per contribution period (monthly, quarterly or yearly) at the annual rate…
How to use Inflation Calculator
Inflation Calculator. Future cost and purchasing power. Central banks target about 2% (US Fed, ECB, Bank of England) and 4% in India (RBI); long-run averages…
How to use Currency Converter
Currency Converter. ECB reference rates with the rate date. The ECB publishes once each working day around 16:00 CET.
How to use Cryptocurrency Converter
Cryptocurrency Converter. BTC, ETH, SOL and 50+ coins to any currency. CoinGecko updates prices roughly every minute; the timestamp of the price is shown.
How to use Stock Profit Calculator
Stock Profit Calculator. Profit, ROI and break-even sell price. The sell price at which proceeds equal what you paid including fees: (shares × buy price +…
How to use Dividend Calculator
Dividend Calculator. Yield, income and DRIP projection. 2–5% is typical for established companies. Very high yields can signal that the market expects a cut.
How to use Retirement Calculator
Retirement Calculator. Savings needed and monthly saving required. It depends on spending. A common rule is 25 times your yearly spending (the 4% rule); this…
How to use Budget Planner
Budget Planner. Monthly budget with the 50/30/20 rule. Spend about 50% of after-tax income on needs, 30% on wants and 20% on savings and debt repayment.
How to use Invoice Generator
Invoice Generator. Line items, tax and a matching PDF. No. It is built in your browser.
How to use Quotation Generator
Quotation Generator. Professional quotes as PDF. A quotation offers a price before work starts and is not a request for payment; an invoice requests payment…
How to use Receipt Generator
Receipt Generator. Payment receipts as PDF. Seller name, date, items or service, amount paid, payment method and a receipt number; tax registration numbers…
How to use Business Name Generator
Business Name Generator. Brandable names from your keywords. Search your country's company registry and trademark office, and check domain and social handle…
How to use PPF Calculator
PPF Calculator. 15-year PPF at 7.1%. No. PPF is EEE: contributions qualify for 80C, interest and maturity are tax-free.
How to use Instagram Bio Generator
Instagram Bio Generator. 150-character bios with emojis and CTAs. 150 characters, including spaces and emojis.
How to use Instagram Font Generator
Instagram Font Generator. Copy-paste fonts for bios and captions. Instagram search may not match fancy letters to normal words, so keep your name field in…
How to use Instagram Hashtag Generator
Instagram Hashtag Generator. Mixed broad, niche and branded hashtags. Instagram allows 30 but recommends 3–5 relevant ones.
How to use Instagram Caption Generator
Instagram Caption Generator. Captions with hooks, emojis and CTAs. Up to 2,200 characters are allowed, but only the first 125 or so show before 'more', so…
How to use YouTube Tag Generator
YouTube Tag Generator. Tags within the 500-character limit. YouTube says tags play a minimal role, mainly helping with common misspellings.
How to use YouTube Title Generator
YouTube Title Generator. Click-worthy titles under 70 characters. The limit is 100 characters, but about 60–70 show in search results, so put the main…
How to use YouTube Description Generator
YouTube Description Generator. Structured descriptions with chapters. The first 100–150 characters appear in search and above 'more', so summarise the video…
How to use YouTube Thumbnail Downloader
YouTube Thumbnail Downloader. Get HD, SD and max-res thumbnails. Older or low-resolution videos do not have a 1280×720 version.
How to use YouTube Thumbnail Resizer
YouTube Thumbnail Resizer. Resize any image to 1280×720 under 2 MB. 1280 × 720 pixels (16:9), at least 640 px wide, under 2 MB, as JPG, PNG or GIF.
How to use YouTube Channel Banner Maker
YouTube Channel Banner Maker. 2560×1440 banner with safe-area guide. 2560 × 1440 pixels, at most 6 MB.
How to use YouTube Tags Extractor
YouTube Tags Extractor. See the hidden tags of any video. Many creators do not add tags, since YouTube says they matter little for ranking.
How to use YouTube Engagement Calculator
YouTube Engagement Calculator. Engagement rate from views, likes, comments. Roughly 2–6% by views is typical; above 8% is excellent.
How to use TikTok Hashtag Generator
TikTok Hashtag Generator. Niche and trending-style TikTok tags. There is no evidence that #fyp boosts reach.
How to use TikTok Bio Generator
TikTok Bio Generator. 80-character bios that fit TikTok. 80 characters.
How to use Facebook Post Formatter
Facebook Post Formatter. Bold, italic, lists and spacing for posts. Facebook has no bold button, so the formatter swaps letters for Unicode bold characters…
How to use LinkedIn Post Generator
LinkedIn Post Generator. Hook, story, takeaway and CTA. The limit is 3,000 characters. About 210 characters show before 'see more', so the hook must work…
How to use Twitter/X Character Counter
Twitter/X Character Counter. Weighted 280-character count like X. X weights characters outside common Latin ranges, including emojis, as two characters.
How to use Social Media Image Resizer
Social Media Image Resizer. Instagram, Facebook, X, LinkedIn sizes. 1080 × 1350 px (4:5) for portrait, 1080 × 1080 for square, 1080 × 566 for landscape.
How to use Hashtag Counter
Hashtag Counter. Count and list hashtags in a caption. A # followed by letters, numbers or underscores. Spaces and punctuation end the tag.
How to use Social Media Engagement Calculator
Social Media Engagement Calculator. Engagement rate by followers or reach. Around 1–3% by followers is typical; smaller accounts often see higher rates.
How to use AI Text Generator
AI Text Generator. Generate any text from a prompt. It is generated fresh for your prompt, not copied from a source, but always fact-check names, numbers and…
How to use AI Paragraph Rewriter
AI Paragraph Rewriter. Rewrite paragraphs in a new style. Rewording someone else's ideas still needs a citation. Use rewriting to improve your own writing.
How to use AI Email Writer
AI Email Writer. Draft professional emails in seconds. Yes. Paste the email you received into the key points and ask for a reply.
How to use AI Blog Title Generator
AI Blog Title Generator. SEO blog titles for your keyword. It matches search intent, includes the keyword early, promises a clear benefit and fits in about…
How to use AI Blog Outline Generator
AI Blog Outline Generator. H2/H3 outlines with key points. Each section gets 2–4 bullet points describing what to cover, so you can write each part quickly.
How to use AI Meta Description Generator
AI Meta Description Generator. Click-worthy 155-character descriptions. The template generator fills in phrases you choose; the AI version reads your page…
How to use AI Product Description Generator
AI Product Description Generator. Persuasive copy for e-commerce. Yes. Choose the Amazon format for five feature-benefit bullets.
How to use AI Grammar Checker
AI Grammar Checker. Fix grammar, spelling and punctuation. It makes the minimum changes needed to be correct and lists them, so your voice stays the same.
How to use AI Text Summarizer
AI Text Summarizer. Summaries, bullet points or TL;DR. Extract the text with PDF to Text, then paste it here.
How to use AI Sentence Rewriter
AI Sentence Rewriter. 5 ways to say one sentence. Use the paragraph rewriter for longer text; this tool focuses on one sentence at a time.
How to use AI Essay Writer
AI Essay Writer. Structured essays with intro and conclusion. Check your institution's rules first.
How to use AI Cover Letter Generator
AI Cover Letter Generator. Tailored cover letters for each job. About 250–400 words, three or four paragraphs.
How to use AI Resume Summary Generator
AI Resume Summary Generator. 3-sentence professional summaries. A 2–4 sentence pitch at the top of a CV that states who you are, your experience and the…
How to use AI Business Name Generator
AI Business Name Generator. Creative AI brand name ideas. The AI understands your description and invents names with meaning, while the template tool…
How to use AI Ad Copy Generator
AI Ad Copy Generator. Google, Meta and LinkedIn ad copy. Yes. Limits are given to the AI and lengths are shown next to every line so you can trim any that…
How to use AI YouTube Script Generator
AI YouTube Script Generator. Hook, sections and CTA for videos. Roughly 150 words per minute of video, so a 5-minute video gets about 750 words.
How to use AI Instagram Caption Generator
AI Instagram Caption Generator. AI captions matched to your post. The AI writes original captions from your description; the template tool combines…
How to use AI Hashtag Generator
AI Hashtag Generator. Relevant hashtags from a description. No. It does not have live trend data; it suggests relevant, commonly used hashtags for your topic.
How to use AI Translation Tool
AI Translation Tool. Natural translation in 30+ languages. More than 30, including English, Spanish, French, German, Hindi, Arabic, Chinese, Japanese…
How to use AI Readability Checker
AI Readability Checker. Readability scores plus AI suggestions. A Flesch Reading Ease of 60–70 (8th–9th grade) suits most web content.
How to use Password Generator
Password Generator. Cryptographically random passwords and passphrases. At least 12 characters, and 16 or more for important accounts.
How to use Password Strength Checker
Password Strength Checker. Strength, crack time and breach check. The analysis runs in your browser.
How to use Random Password Generator
Random Password Generator. Ten random passwords at once. All passwords here are random. The Strong Password Generator defaults to 20+ characters with every…
How to use Strong Password Generator
Strong Password Generator. 20+ characters, every character type. 80 bits resists offline attacks; 100+ bits is considered future-proof.
How to use PIN Generator
PIN Generator. Random 4- or 6-digit PINs, no weak patterns. 1234, 1111, 0000, 1212 and 7777 account for about 20% of all 4-digit PINs, so avoid them.
How to use Random Number Generator
Random Number Generator. Integers or decimals in any range. It uses crypto.getRandomValues, a cryptographically secure pseudo-random generator seeded by your…
How to use SHA512 Generator
SHA512 Generator. SHA-512 hash of text or a file. Both are secure. SHA-512 has a larger output and can be faster on 64-bit CPUs.
How to use SHA1 Generator
SHA1 Generator. SHA-1 hash of text or a file. In 2017 researchers produced two different PDFs with the same SHA-1 (the SHAttered attack), so it should not be…
How to use MD5 Checker
MD5 Checker. Verify a file against its checksum. The file is different from the publisher's: the download may be incomplete or corrupted, or the file may…
How to use Password Entropy Calculator
Password Entropy Calculator. Bits of entropy and guesses needed. The formula assumes every character was chosen at random.
How to use Secure Token Generator
Secure Token Generator. API keys and secrets in hex or Base64URL. 16 bytes (128 bits) is the minimum for session IDs; 32 bytes (256 bits) for API keys and…
How to use SSL Certificate Checker
SSL Certificate Checker. Validity, issuer, SANs and chain. Usual causes are an expired certificate, a hostname not in the SAN list, a self-signed certificate…
How to use SSL Expiry Checker
SSL Expiry Checker. Days until certificates expire, in bulk. Let's Encrypt certificates last 90 days and renew automatically after 60.
How to use IP Address Lookup
IP Address Lookup. Owner, network and country of any IP. No. It shows which organisation (usually an internet provider) holds the address block and roughly…
How to use DNS Lookup
DNS Lookup. A, AAAA, MX, TXT, NS, CNAME records. Your computer may use cached answers from your ISP's resolver.
How to use WHOIS Lookup
WHOIS Lookup. Registrar, dates and status via RDAP. Since GDPR (2018) most registrars redact personal contact details.
How to use Domain Availability Checker
Domain Availability Checker. Check if a domain is registered. It is a strong sign but not a reservation.
How to use Email Validator
Email Validator. Syntax, MX records, typos and disposable domains. No. Confirming a mailbox requires connecting to the mail server, which is unreliable and…
How to use URL Safety Checker
URL Safety Checker. Phishing and risk signals for any link. No tool can. A low-risk result means no common warning signs were found; still avoid entering…
How to use Length Converter
Length Converter. Metres, feet, inches, miles and more. 1 metre = 3.28084 feet (1 ÷ 0.3048).
How to use Weight Converter
Weight Converter. Kilograms, pounds, ounces, stones. 2.2046226 lb.
How to use Temperature Converter
Temperature Converter. Celsius, Fahrenheit, Kelvin, Rankine. About 98.6 °F (37 °C); normal ranges from roughly 97 to 99 °F.
How to use Volume Converter
Volume Converter. Litres, gallons, cups, ml, fl oz. A US legal cup is 240 ml; a US customary cup is 236.6 ml; a metric cup is 250 ml.
How to use Area Converter
Area Converter. Square metres, feet, acres, hectares. 10.7639 sq ft, because 1 m = 3.28084 ft and area is squared.
How to use Speed Converter
Speed Converter. km/h, mph, m/s, knots. Divide by 1.609344. 100 km/h ≈ 62.14 mph.
How to use Time Zone Converter
Time Zone Converter. Convert times between any zones, DST-aware. India (UTC+5:30), Nepal (UTC+5:45) and parts of Australia use non-hour offsets.
How to use Data Storage Converter
Data Storage Converter. Bytes, KB, MB, GB, TB, KiB, GiB. The drive is 1,000,000,000,000 bytes (decimal), and Windows divides by 1,024³, showing 931 GiB but…
How to use Bytes to KB Converter
Bytes to KB Converter. Bytes to kilobytes (1000 and 1024). Officially 1,000 (SI). 1,024 bytes is a kibibyte (KiB), though many programs still call it a KB.
How to use MB to GB Converter
MB to GB Converter. Megabytes to gigabytes. 1,000 MB in a decimal GB; 1,024 MiB in a GiB.
How to use Inches to CM Converter
Inches to CM Converter. Inches to centimetres (× 2.54). Exactly 2.54 cm.
How to use KG to Pounds Converter
KG to Pounds Converter. Kilograms to pounds (× 2.20462). 110.23 lb.
How to use Celsius to Fahrenheit
Celsius to Fahrenheit. °F = °C × 9/5 + 32. 98.6 °F.
How to use Miles to KM Converter
Miles to KM Converter. Miles to kilometres (× 1.609344). 8.047 km.
How to use Feet to Meters Converter
Feet to Meters Converter. Feet to metres (× 0.3048). 1.8288 m.
How to use MP4 to MP3 Converter
MP4 to MP3 Converter. Extract MP3 audio from video. 192 kbps is a good balance for music; 128 kbps is fine for speech; 320 kbps for the highest quality.
How to use WAV to MP3 Converter
WAV to MP3 Converter. Compress WAV to MP3. A 10 MB WAV becomes about 1 MB at 128 kbps or 1.5 MB at 192 kbps.
How to use MP3 to WAV Converter
MP3 to WAV Converter. Decode MP3 to uncompressed WAV. No. It keeps the MP3's quality without further loss; detail removed by MP3 compression does not return.
How to use GIF to MP4 Converter
GIF to MP4 Converter. Turn animated GIFs into small MP4 videos. MP4 video compresses far better than GIF, so pages load faster; social networks convert GIFs…
How to use PNG to JPG Converter
PNG to JPG Converter. Batch-convert PNG files to JPG. Yes, up to 50 per batch, downloaded as a ZIP.
How to use Unit Converter
Unit Converter. All common units in one place. Yes. Factors such as 1 inch = 2.54 cm are exact definitions.
How to use Citation Generator
Citation Generator. APA, MLA and Harvard references. The one your instructor or journal asks for: APA is common in social sciences, MLA in humanities and…
How to use APA Citation Generator
APA Citation Generator. APA 7th edition references. Author. (Year, Month Day). Title of page. Site Name. URL.
How to use MLA Citation Generator
MLA Citation Generator. MLA 9th edition works cited. Yes, MLA recommends including the URL (without https://) or DOI for online sources.
How to use Harvard Citation Generator
Harvard Citation Generator. Harvard (Cite Them Right) references. Author (Year) Title. Available at: URL (Accessed: day month year).
How to use Essay Word Counter
Essay Word Counter. Word count with a target and limits. Usually not, but check your assignment brief.
How to use Plagiarism Checker
Plagiarism Checker. Compare your text with sources you paste. No. It compares only against the sources you paste, so use it to check paraphrasing against…
How to use Reading Level Checker
Reading Level Checker. US grade level from five formulas. About grade 7–9. The average US adult reads comfortably at an 8th-grade level.
How to use Flesch Reading Ease Calculator
Flesch Reading Ease Calculator. Flesch Reading Ease and Kincaid grade. 60 or higher for general audiences.
How to use Grade Percentage Calculator
Grade Percentage Calculator. Marks to percentage and letter grade. (Marks obtained ÷ maximum marks) × 100. 88 out of 100 is 88%.
How to use CGPA Calculator
CGPA Calculator. Cumulative GPA from semester SGPAs. CBSE: CGPA × 9.5, so 8.0 = 76%. Many Indian universities publish their own formula on the marksheet.
How to use SGPA Calculator
SGPA Calculator. Semester GPA from credits and grade points. SGPA is for one semester; CGPA combines all semesters so far.
How to use GPA to Percentage Converter
GPA to Percentage Converter. 4.0 and 10-point GPA to %. About 85–88% on the 4.0 scale, between a B+ and A−.
How to use Percentage to GPA Converter
Percentage to GPA Converter. Percentage to 4.0 GPA or 10-point CGPA. B− or 2.7 on the US scale; 8.42 CGPA by the CBSE method.
How to use Scientific Notation Converter
Scientific Notation Converter. Standard form, E notation, sig figs. 6.02 × 10⁶.
How to use Binary to Decimal Converter
Binary to Decimal Converter. Binary to decimal, hex and octal. 8 + 4 + 2 + 1 = 15.
How to use Decimal to Binary Converter
Decimal to Binary Converter. Decimal to binary, hex, octal. 1010.
How to use Roman Numeral Converter
Roman Numeral Converter. Numbers ↔ Roman numerals (1–3999). MMXXVI.
How to use Equation Solver
Equation Solver. Solve for x, or 2–3 simultaneous equations. That has no real solution, so none is listed.
How to use Quadratic Equation Solver
Quadratic Equation Solver. Roots, discriminant and vertex. Positive: two real roots. Zero: one repeated root. Negative: two complex roots.
How to use Random Quiz Generator
Random Quiz Generator. Turn your questions into a shuffled quiz. Yes. Paste lines in the format Question | Correct answer | Wrong 1 | Wrong 2.
How to use CV Builder
CV Builder. ATS-friendly resume in the browser. To build a CV, fill in your details, experience, education and skills, and download an ATS-friendly PDF.
How to use Countdown Timer
Countdown Timer. Set minutes or count down to a date. Yes. It tracks the end time rather than counting ticks, so it stays accurate; the alarm plays when it…
How to use Stopwatch
Stopwatch. Online stopwatch with laps. It reads performance.now(), accurate to well under a millisecond; display is to 0.01 s.
How to use Online Alarm Clock
Online Alarm Clock. Set alarms with sounds in your browser. No. Browsers cannot wake a sleeping device.
How to use Pomodoro Timer
Pomodoro Timer. 25/5 focus cycles with long breaks. Francesco Cirillo in the late 1980s, named after his tomato-shaped kitchen timer.
How to use World Clock
World Clock. Current time in cities around the world. Your browser includes the IANA time-zone database, which records every DST rule and change.
How to use Business Days Calculator
Business Days Calculator. Weekdays between dates minus holidays. Yes by default; untick either to exclude it.
How to use Working Days Calculator
Working Days Calculator. Working days and hours in a period. About 260–262 weekdays, minus public holidays (typically 8–15 depending on country).
How to use Days Until Calculator
Days Until Calculator. How many days until any date. Pick 25 December; the default target is already Christmas this year.
How to use Birthday Calculator
Birthday Calculator. Days to your birthday, weekday born, zodiac. Enter your birth date and it is shown as 'You were born on a…'.
How to use Leap Year Checker
Leap Year Checker. Is a year a leap year, and why. 2028, then 2032 and 2036.
How to use Week Number Calculator
Week Number Calculator. ISO 8601 and US week numbers. ISO 8601, used across Europe and in most business software.
How to use Calendar Generator
Calendar Generator. Printable monthly and yearly calendars. Yes. Choose Monday or Sunday as the first day.
How to use Date to Unix Timestamp
Date to Unix Timestamp. Any date and time to epoch seconds. Yes. The same wall-clock time in different zones is a different instant, so it has a different…
How to use Unix Timestamp to Date
Unix Timestamp to Date. Epoch seconds or ms to readable dates. Current timestamps in seconds have 10 digits; in milliseconds, 13 digits.
How to use Add Days to Date
Add Days to Date. Date after adding days, weeks, months. Enter 90 in Days; the default start date is today.
How to use Subtract Days from Date
Subtract Days from Date. Date before a number of days. Enter 100 in Days with today as the start.
How to use Age in Days Calculator
Age in Days Calculator. Your age in days, weeks, hours. About 10,957 days, depending on leap years.
How to use Time Between Two Dates
Time Between Two Dates. Exact years, months, days, hours, minutes. 8,760 in a common year, 8,784 in a leap year.
How to use Meeting Time Planner
Meeting Time Planner. Find a time that works across time zones. The planner shows the slots with the fewest people outside working hours, so you can rotate…
How to use Internet Speed Test
Internet Speed Test. Download, upload, ping, jitter and bufferbloat. 25 Mbps per person covers 4K streaming and video calls; gamers need a ping under 40 ms…
How to use What Is My IP
What Is My IP. Your public IPv4/IPv6, ISP and location. 192.168.x.x is a private address on your home network.
How to use IPv4 Calculator
IPv4 Calculator. Address type, class, binary and hex. Yes. 172.16.0.0/12 (172.16.0.0–172.31.255.255) is a private range under RFC 1918.
How to use IPv6 Calculator
IPv6 Calculator. Compress, expand and analyse IPv6. Leading zeros in each group are dropped and the longest run of zero groups is replaced with ::, once.
How to use Subnet Calculator
Subnet Calculator. Network, broadcast, mask, host range. 64 addresses, 62 usable.
How to use DNS Propagation Checker
DNS Propagation Checker. Compare answers from public resolvers worldwide. Until the old record's TTL expires in each resolver's cache, typically minutes to a…
How to use Ping Test
Ping Test. TCP ping and HTTP response time. Not exactly. ping uses ICMP, which cloud servers cannot send.
How to use Port Checker
Port Checker. Is a TCP port open on a host?. No service is listening, the router is not forwarding it, or a firewall rejects it.
How to use HTTP Header Checker
HTTP Header Checker. Response headers and security headers. HSTS, Content-Security-Policy and X-Content-Type-Options: nosniff, then Referrer-Policy and…
How to use Website Uptime Checker
Website Uptime Checker. Live monitor with response-time chart. No. It runs while the tab is open. For 24/7 alerts use a hosted service such as UptimeRobot.
How to use Website Down Checker
Website Down Checker. Is it down for everyone or just me?. Your DNS cache, network, firewall, browser extension or ISP may be the issue.
How to use Domain IP Checker
Domain IP Checker. Find the IP addresses of a domain. Large sites spread traffic across servers or use a CDN that returns different addresses by region.
How to use DNS Record Checker
DNS Record Checker. All DNS records for a domain at once. Most resolvers refuse ANY queries (RFC 8482), so each type is queried separately.
How to use MX Record Checker
MX Record Checker. Mail servers, priorities and their IPs. Senders try the lowest number first and fall back to higher numbers if it fails.
How to use SPF Record Checker
SPF Record Checker. Validate SPF and count DNS lookups. SPF returns a permanent error (permerror), so receivers may treat your mail as failing SPF.
How to use DKIM Checker
DKIM Checker. Look up and parse a DKIM public key. In an email's DKIM-Signature header (the s= value), or your email provider's DKIM settings.
How to use DMARC Checker
DMARC Checker. Parse DMARC policy and reporting. Start with p=none and reports, fix failures, then move to quarantine and reject.
How to use Website Redirect Checker
Website Redirect Checker. Check http/https and www redirects. Either is fine; pick one and redirect the other with a 301 so there is only one canonical…
How to use User Agent Checker
User Agent Checker. Parse any user-agent string. For historical compatibility: early sites served better pages to 'Mozilla', so every browser kept the token.
How to use Browser Information Checker
Browser Information Checker. Screen, language, cookies, JS features. No. It is read and displayed in your browser only.
How to use Favicon Generator
Favicon Generator. ICO and PNG favicons from an image or text. favicon.ico (with 16, 32 and 48 px), a 180 px apple-touch-icon and 192 and 512 px PNGs for the…
How to use Logo Maker
Logo Maker. Simple text and icon logos as SVG/PNG. You own what you create, but icons and fonts are common shapes, so a distinctive custom mark is better for…
How to use QR Code Generator
QR Code Generator. URL, Wi-Fi, UPI, vCard and text QR codes. No. They are static codes that contain your data directly, with no tracking or redirect service.
How to use Barcode Generator
Barcode Generator. Code 128, EAN-13, UPC-A, Code 39 and more. EAN-13 (or UPC-A in North America), with a number issued by GS1 for your company.
How to use Color Picker
Color Picker. Pick colours and sample your screen. Click Eyedropper (Chrome or Edge) and then click anywhere on your screen.
How to use HEX to RGB Converter
HEX to RGB Converter. #RRGGBB to rgb(r, g, b). rgb(255, 255, 255), pure white.
How to use RGB to HEX Converter
RGB to HEX Converter. rgb(r, g, b) to #RRGGBB. #000000, black.
How to use Color Palette Generator
Color Palette Generator. Harmonies from one base colour. Analogous palettes feel calm and cohesive; complementary palettes give strong contrast for…
How to use Gradient Generator
Gradient Generator. Gradients as CSS or PNG wallpaper. Yes. Choose a size and download a PNG.
How to use Contrast Checker
Contrast Checker. WCAG AA/AAA contrast ratio. WCAG AA: 4.5:1 for normal text, 3:1 for large text (24 px or 18.66 px bold) and UI components.
How to use CSS Button Generator
CSS Button Generator. Design buttons and copy the CSS. <button> for actions on the page; <a> for links that navigate to another page.
How to use CSS Animation Generator
CSS Animation Generator. Keyframe animations with presets. Animating transform and opacity is cheap because the GPU handles it; animating width, height or…
How to use Audio Cutter
Audio Cutter. Trim MP3, WAV, M4A with a waveform. Yes. Select up to 30 seconds, add a short fade-out and export as MP3 (Android) or convert to M4R for iPhone.
How to use Audio Joiner
Audio Joiner. Merge songs and clips into one file. Yes. MP3, WAV, M4A, OGG and FLAC can be mixed in one project.
How to use Audio Converter
Audio Converter. MP3, WAV, M4A, OGG, FLAC conversion. MP3 for compatibility, AAC/M4A for Apple devices, Opus for the smallest files at good quality, WAV or…
How to use Video Compressor
Video Compressor. Shrink MP4 size with resolution and bitrate. Phone videos often shrink 50–80% by lowering the bitrate and resolution to 1080p or 720p…
How to use Video Cutter
Video Cutter. Trim MP4 to a start and end time. Cut the two parts you want to keep, then join them in a video editor.
How to use Video to GIF Converter
Video to GIF Converter. Make GIFs from video clips. Use 10–15 fps, a width of 480 px or less and clips under 6 seconds.
How to use GIF Compressor
GIF Compressor. Reduce GIF size by colours, frames and width. Reducing width has the biggest effect, then frame dropping, then fewer colours.
How to use Video to Audio Converter
Video to Audio Converter. Extract the audio track as MP3 or WAV. WAV export is lossless; MP3 at 320 kbps is nearly indistinguishable.
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