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JWT Generator

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Generate and sign JSON Web Tokens (JWT) with HS256 from a custom header, payload and secret, entirely in your browser using the Web Crypto API. No data leaves your device.

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Privacy & Security

All processing happens locally in your browser — nothing is uploaded.

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update v1.0
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How to Use

Edit the payload and secret, then click Generate to get a signed HS256 JWT.

Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.

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