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Hash Generator

Type or paste text to generate its SHA-1, SHA-256, and SHA-512 hashes, computed with your browser's built-in cryptographic functions.

About cryptographic hashes

A hash function turns any input into a fixed-length string of characters. The same input always produces the same hash, but even a tiny change to the input produces a completely different result — which is why hashes are used to verify file integrity, store password fingerprints, and detect tampering. SHA-256 and SHA-512 are currently considered cryptographically strong; SHA-1 is included for compatibility with older systems but is no longer considered secure against determined attackers.

Can a hash be reversed back to the original text?
Not in practice — that's the point of a cryptographic hash. It's a one-way function.
Is my text sent anywhere?
No. Hashing runs entirely in your browser using the Web Crypto API.

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