Image Upscaler
To upscale an image, drop it and choose 2× or 4×. ClickZM enlarges in steps with high-quality interpolation and applies an edge-aware sharpen, giving cleaner results than a single resize; everything runs in your browser.
- Free
- No signup
- Runs in your browser
How to use Image Upscaler
- 1Choose your file with the upload box above, or drag and drop it onto the box.
- 2Adjust the options; the preview updates as you change them.
- 3Click the main button to process the file in your browser.
- 4Download the result. Your original file is never changed or uploaded.
Image Upscaler: questions people ask
Is this AI upscaling?
No. It uses multi-step bicubic-style interpolation plus sharpening. It cannot invent missing detail the way generative AI upscalers do, but it never invents fake detail either.
What is the maximum size?
Up to 8000 px on the long edge, depending on your browser's canvas limit.
Is my data uploaded when I use the Image Upscaler?
No. The Image Upscaler runs entirely in your web browser, so your files stay on your device and work even on a slow connection.
Does the Image Upscaler work on iPhone, Android and Mac?
Yes. The Image Upscaler runs in any modern browser (Safari, Chrome, Edge or Firefox) on iPhone, iPad, Android phones, Mac, Windows and Chromebook. There is no app to install.
Is the Image Upscaler free?
Yes. The Image Upscaler is free with no signup, no watermark and no daily limit.