Hash and HMAC generator
Type text to hash it with every SHA algorithm at once. Add a key to compute HMACs instead.
Hashes use your browser's WebCrypto on the UTF-8 bytes of the text. SHA-1 is shown for compatibility; do not use it for new security work.
These tools run entirely in your browser. Nothing you paste or drop is uploaded, stored, or sent to analytics.
With a key, each row is an HMAC with that hash — the scheme webhook signatures use.