HMAC generator
Sign a message with a secret key using HMAC-SHA-1, SHA-256, SHA-384 or SHA-512.
In your browser
Signature
About this tool
Sign a message with a secret key using HMAC-SHA-1, SHA-256, SHA-384 or SHA-512. It works entirely in your browser, so what you enter stays on your device. It’s free and there’s no account to create.
Questions
Is my data uploaded?
No. This tool runs in your browser, so your text and files never reach our server.
Is this tool free?
Yes. It’s free to use with no sign-up and no limits for normal use.
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