AV Tools
ContentsPortfolio ↗
V · Security & Encoding
V · Security & EncodingAV-S06

AV-S06

HMAC Generator

Compute HMAC-SHA1/256/384/512 with a text, hex or Base64 key, and compare against an expected signature.

● Runs on your device; nothing is uploaded

How to use it

  1. Enter the Message and choose whether it is text, hex or Base64.
  2. Enter the Secret key and choose its encoding.
  3. Pick the Hash and the Output format.
  4. Paste an expected signature to check whether it matches.

Limits

Message
5 MB
Features
  • HMAC-SHA1, HMAC-SHA256, HMAC-SHA384 and HMAC-SHA512
  • Key and message as UTF-8 text, hex or Base64
  • Output as hex, Base64 or Base64URL
  • Compares against an expected hex or Base64 signature
  • Uses the Web Crypto API in your browser

For AI agents: avtools_hmac_generator

AV-S06 · HMAC Generator

Loading the tool…