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utility / Hash

HMAC Generator

Generate HMAC signatures using SHA-256, SHA-512, and other algorithms.

Runs locally
LOCAL WORKBENCH
Input stays in this browser
HMAC Signature Generator
100% Local
Enter secret & text to generate...

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Related utilities

01
JWT GeneratorBuild and sign JWT tokens with custom claims, headers, and algorithms.
→02
Hash GeneratorGenerate MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes from text.
→03
Base64 EncoderEncode text or binary data to Base64.
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Field notes

Before you use it

What is HMAC used for?+

HMAC (Hash-based Message Authentication Code) verifies both data integrity and authenticity. Common in API authentication (AWS Signature, Stripe webhooks).