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#securityUpdated 2026-07-25

HMAC Generator

Generate an HMAC signature using a secret and message.

Input

Output

Result will appear here.
runs locally

Features

  • Secret-based signing
  • SHA-256 output
  • Fully local

How to use HMAC Generator

  1. 1Enter the secret and message
  2. 2Click Generate
  3. 3Copy the HMAC

Example

Input — Example

secret
hello

Output

hmac output

What HMAC Generator does

Generate an HMAC signature using a secret and message. It runs entirely client-side, so nothing you enter is sent to a server — useful when working with sensitive data or when you just want an instant result without waiting on a network round-trip.

Common use cases

  • API signing
  • Request verification

FAQ

What format should I use?

Enter the secret on the first line and the message on the second line.

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