JWT Tool
Enter a header and payload in JSON format to generate, copy, decode, and verify HS256-signed JWTs directly in your browser.
Generated tokens are displayed instantly and can be copied with a single click.
You can also paste an existing JWT to decode it and inspect
the header and payload side by side.
By providing the signing secret, the tool verifies the signature, making it easy to confirm token integrity and validity.
This tool is useful for testing authentication flows, verifying API tokens, and troubleshooting issues during development.
All operations are performed without external libraries or commands, allowing quick experimentation directly in the browser.
All processing happens entirely in your browser; nothing is sent anywhere.
Decode a JWT
Enter the secret to verify the signatureRecent Articles
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