HMAC Generator

Generate HMAC (Hash-based Message Authentication Code) online. Supports HMAC-MD5, HMAC-SHA256 and HMAC-SHA512 with a secret key. Fully browser-based.

Your data never leaves your browser

SHA Hash Generator

Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes

MD5 Hash Generator

Generate and verify MD5 checksums and hashes online instantly

Bcrypt Hash Generator & Verifier

Generate and verify bcrypt password hashes securely online

Frequently Asked Questions

What is HMAC used for?

HMAC is used to verify both data integrity and authenticity. It's commonly used in API authentication (e.g., AWS Signature, Stripe webhooks) where a shared secret signs the message.