SHA1 Generator
To generate a SHA-1 hash, type text or drop a file and copy the 40-character hex digest. SHA-1 is still used by Git and for legacy checksums, but is no longer safe for signatures.
- Free
- No signup
- Runs in your browser
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How to use SHA1 Generator
- 1Type or paste your input into the SHA1 Generator.
- 2Choose any options you need.
- 3See the result update instantly.
- 4Copy the result or download it.
SHA1 Generator: questions people ask
Why is SHA-1 considered broken?
In 2017 researchers produced two different PDFs with the same SHA-1 (the SHAttered attack), so it should not be used where collisions matter.
How long is a SHA-1 hash?
160 bits: 40 hex characters.
Is my data uploaded when I use the SHA1 Generator?
No. The SHA1 Generator runs entirely in your web browser, so your text and numbers stay on your device and work even on a slow connection.
Does the SHA1 Generator work on iPhone, Android and Mac?
Yes. The SHA1 Generator 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 SHA1 Generator free?
Yes. The SHA1 Generator is free with no signup, no watermark and no daily limit.