Developer Tools
JWT Decoder
Paste a JSON Web Token into the editor, decode it instantly, and inspect the header and payload without sending the token to a server. This page is useful for debugging auth flows, API integrations, and token-based tooling.
Decode JWT Tokens Online
Decode JWT tokens online to inspect the header, payload, timing claims, and signature metadata in your browser.
Why Use This JWT Decoder
- Inspect and transform developer-focused text quickly
- Copy results for debugging, documentation, and integrations
- Use sample input for quick testing
- Download the output as a file
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Frequently Asked Questions
How do I decode a JWT?
Paste the token into the input box, run the decoder, and inspect the decoded header and payload sections.
Does this JWT decoder verify signatures?
No. It decodes and inspects the token structure locally, but it does not verify the JWT signature.
Is this JWT decoder free?
Yes. It is free to use in your browser.