Compute the SHA-256 hash of any file locally. Everything happens locally in your browser, so it is fast and completely private. Nothing you enter is uploaded.
Free · no sign-upSecurity
Good to know
Cost.
Free and unlimited. No account, no watermark, no export fee.
Your files.
This one does its work inside your browser, so whatever you open never leaves your device and never reaches our servers.
Where it lives. Filed under Security, on the
Free Tools page.
Frequently asked questions
Is this tool free?
Yes — it is completely free, with no sign-up or watermark.
Is my data private?
Yes. It runs entirely in your browser, so nothing you paste or upload ever leaves your device.