Generate an HMAC signature for any message using a secret key. Choose from SHA-1, SHA-256, or SHA-512 algorithms.
How to use the HMAC Generator Tool
- Enter your message in the input field.
- Enter your secret key.
- Select the hash algorithm.
- Click the Copy button to copy the HMAC to your clipboard.
HMAC Details
| Name | HMAC |
| Type | Security |
| Description | HMAC (Hash-based Message Authentication Code) combines a cryptographic hash function with a secret key. It verifies both the integrity and authenticity of a message - only someone with the secret key can produce a valid HMAC. HMAC is used in API authentication, webhook verification, and JWT signatures. |
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