About JWT Decoder
Decode JWTs online to inspect claims. This tool does not verify signatures — use it for debugging only. Free JWT decoder on Fah Swe Tools.
How it works
- Paste a JWT (optionally with Bearer prefix).
- Inspect header claims and payload JSON.
- Remember: this does not prove the token is authentic.
FAQ
Do you verify signatures?
No. Verification would require secrets/keys and could be misread as a trust oracle. This tool only decodes.
Stored?
Never — processed in memory for the request.