HMAC Generator - Tool Overview
Compute Hash-based Message Authentication Codes (HMAC) using SHA-256, SHA-512, SHA-1, SHA-384, and MD5 with secret keys and hex/base64 output.
Category: security
Best used when: Use this tool when verifying webhook signatures from payment providers (Stripe, GitHub, Shopify, PayPal), generating API request authentication headers (AWS Signature Version 4), or testing cryptographic message integrity.
Summary: Compute Hash-based Message Authentication Codes (HMAC) using SHA-256, SHA-512, SHA-1, SHA-384, and MD5 with secret keys and hex/base64 output.