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HMAC Generator

Compute HMAC signatures with SHA-256, SHA-384, SHA-512, SHA-1, MD5 or SHA-3 and a text, hex or Base64 key.

Runs in your browserText → HMAC
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Example

Input
The quick brown fox jumps over the lazy dog
Output
f7bc83f430538424b13298e6aa6fb143ef4d59a14946175997479dbc2d1a3cd8

How to use the HMAC Generator

  1. Paste or type your Text into the input area, or open a file from your device.
  2. Adjust the options above the editor if the tool offers any.
  3. Review the HMAC result, then copy it or download it as a file.

Privacy and limitations

  • Your data is processed on your device and is not uploaded to any server.

Frequently asked questions

How do I verify a webhook signature?

Paste the raw request body exactly as received, enter the signing secret as the key, pick the algorithm the provider documents (usually HMAC-SHA256) and compare the result with the signature header. Some providers send hex, others Base64.

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