HMAC Generator
Generate HMAC signatures using SHA256 or SHA1 algorithms with custom secret keys and messages.
Security & Privacy Notice
� Educational Purpose Only:
This tool is intended for development, testing, and educational purposes only.
🚫 Never Enter Production Data:
Do NOT use production credentials, API keys, private keys, passwords, or any sensitive data in this online tool.
🛡️ Use Offline Tools for Sensitive Data:
For security-critical applications, use offline, air-gapped environments or locally installed tools.
📖 Verify Results Independently:
Always verify the output of this tool independently before using it in any security-critical context.
Secret key is required
Hexadecimal
Base64
Ready to copy
Use Cases
🔐 API Security
Generate HMAC signatures for API authentication and request validation.
📝 Message Integrity
Verify message integrity and authenticity using HMAC signatures.
🔑 Webhook Validation
Validate webhook requests from external services.