Developer tools

Hash Generator

Compute SHA-256, SHA-512 and HMAC hashes of text or files locally and verify checksums.

Source text

Hash a file

HMAC key (optional)HMAC

Expected hash to verify (optional)

Hashing runs locally with WebCrypto. SHA-1 is shown for checksums only and is not collision-resistant.

Result

How to use

Type text or choose a file. SHA-1, SHA-256, SHA-384 and SHA-512 update automatically; add a key for HMAC or paste an expected hash to verify a download.

Example

SHA-256 of hello world is b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9.

Frequently asked questions

Is my file uploaded?

No. Files are read and hashed in your browser with WebCrypto, up to 256 MB. MD5 is not offered because it is broken and unsupported by WebCrypto.