HMAC Generator
Generate HMAC with secret key, multiple algorithms (MD5, SHA256, etc.) and Hex/Base64 output.
0 Characters
0 Characters
HMAC Result
Auto-generate after entering text and secret
Auto-generate after entering text and secret
About This Tool
A high-demand HMAC generator for API signatures, message authentication, and security validation. Enter text and secret key, then choose from HMAC-MD5/SHA1/SHA-224/SHA-256/SHA-384/SHA-512 to generate authentication codes. Supports Hex/Base64 output and uppercase hex formatting. All calculations run locally, ideal for API debugging, webhook verification, and security testing.
Features
- 🔐 Multi-Algorithm: Supports HMAC-MD5/SHA1/SHA-224/SHA-256/SHA-384/SHA-512
- 📦 Dual Output: Hex and Base64 output support
- 🔠 Uppercase Hex: Toggle uppercase hex formatting
- ⚡ Instant Results: Output updates as you type
- 🛡️ Privacy First: Fully local processing, no uploads