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# JWT decoder

Inspect JWT headers and claims locally, verify the signature with a key you paste, or sign a token of your own. Nothing leaves your browser.
Decode & verifySignJWT to decodeNothing in yet

Paste a token above to inspect its header and payload.

## More web & auth tools

- [JSON formatter](/json/formatter)
- [Base64](/encoding/base64)
[All web & auth tools](/web)

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Canonical HTML: https://nutter.tools/web/jwt/
Markdown version: https://nutter.tools/web/jwt/index.md
Plain-text version: https://nutter.tools/web/jwt/index.txt
Agent index: https://nutter.tools/llms.txt