JWT Decoder
Inspect the header, payload and signature. For debugging only — signatures are not verified.
Content is processed in your browser and never uploaded
⚠️ This tool does not verify JWT signatures. Do not paste real production tokens.
Content is processed in your browser and never uploaded
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Frequently asked questions
- Is the token uploaded?
- No. Decoding happens locally in your browser.
- Does it verify the signature?
- No. It only shows the contents and does not check authenticity.
- Can I paste a real production token?
- Prefer a redacted sample, and avoid leaving it on screen in public.