sha256 hash generator
get the SHA-256 hash of text or a file. computed on your device with the Web Crypto API.
runs on your device · free · no sign-up
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frequently asked questions
what is SHA-256?
a cryptographic hash that turns any input into a 256-bit (64 hex character) fingerprint. a tiny change gives a completely different hash.
can SHA-256 be reversed?
no. it is a one-way function, you can only guess inputs and compare hashes.
is my file uploaded?
no. the hash is calculated locally in your browser.