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HMAC Generator

Create an HMAC locally with Web Crypto.

This tool runs in your browser.

Processed locally.

How to use

  1. 01Enter a secret and message.
  2. 02Generate HMAC.

FAQ

Is the secret uploaded?

No.

HMAC Generator: Can I use the result in production?

Treat generated, converted, or inspected output as a development aid. Validate security-sensitive values, commands, and configuration in the target environment before production use.

Does HMAC Generator upload my input?

TrueFree Tools processes the input in your browser and does not store it on our servers. Features that need browser permissions or access to a user-supplied address still follow the notice shown in the tool.