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Security
Compute an HMAC-SHA1/256/384/512 of a message with a secret key.
Runs entirely in your browser, nothing is uploadedCompute MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text.
Open toolCompute SHA-1, SHA-256, SHA-384, and SHA-512 checksums for any file, to verify it wasn’t altered.
Open toolGuess what algorithm produced a given hash, based on its length and format.
Open tool