HMAC Generator
// Generate HMAC message authentication codes
Algorithm:
#About HMAC Generator
Free online HMAC generator. Create HMAC-SHA256, HMAC-SHA512, and other keyed-hash message authentication codes using the Web Crypto API. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
#FAQ
What is HMAC? ▾
HMAC (Hash-based Message Authentication Code) combines a secret key with a hash function to produce a code that verifies both data integrity and authenticity.
Which algorithm should I use? ▾
SHA-256 is the most commonly used. SHA-512 provides extra security for sensitive applications. SHA-1 is considered legacy and should be avoided for new projects.
</> Embed this tool ▾
Copy this code to embed the tool on your website. Adjust the height to fit your layout.
<iframe src="https://www.browserutils.dev/embed/hmac-generator" width="100%" height="500" frameborder="0" title="HMAC Generator"></iframe>