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HMAC Generator
Generate HMAC signatures using SHA-256, SHA-512, SHA-1 and other algorithms. Verify existing signatures and export results instantly.
✓ Free · Client-Side SHA-256 · SHA-512 · SHA-1 Hex · Base64 · Base64url Verify Mode
🔑 HMAC
HMAC Generator — SHA-256
⚙️ Algorithm & Encoding
Hash Algorithm
Output Encoding
🔑 Secret Key
Key
Key Encoding
📋 Message
Input Message 0 bytes
Message Encoding
✅ HMAC Output
Generated HMAC Signature
HMAC signature will appear here...
🔍 Verify Signature
💡 Paste an existing HMAC below and click Verify to compare it against the generated signature above.
Expected HMAC
📜 Recent
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Generate a signature above.