JWT Decoder — Free, In Browser
Decode a JWT to inspect its header and payload. 100% in your browser — free, no sign-up, no upload.
Inspect JWT claims
Paste a token to decode the header and payload, with issued/expiry times. Decoding happens in your browser; the token is never uploaded.
How to
- 1 Paste a JWT.
- 2 Read the decoded header and payload.
- 3 Check issued and expiry times.
FAQ
Is it free? +
Yes, completely free with no file limits.
Is my data private? +
Yes — this tool runs entirely in your browser. Your files and text are never uploaded.