JWT Decoder
ExtensionTools
Overview
Decode a JWT's header and payload instantly, right from the browser toolbar or a right-click menu.
JWT Decoder shows you a JWT's header and payload the moment you need them — paste a token into the toolbar popup, or select one on any page and right-click "Decode as JWT". It shows: - The decoded header and payload, pretty-printed - Human-readable timestamps for exp/iat/nbf - Whether the token is expired Everything happens locally in the popup — the token is never sent anywhere, and no signature verification is attempted (that would need the signing key, which this extension never has). This is a free, independent hobby project.
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Details
- Version0.1.1
- UpdatedAugust 8, 2026
- Offered bymrkanber
- Size9.38KiB
- LanguagesEnglish
- Developer
Email
mrkanber@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
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The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes