JWT Token Decoder Online
Paste a JWT token to decode and inspect its header, payload, and expiry status — entirely in your browser.
Decoding happens entirely in your browser. We never receive your token.
How to decode a JWT token
- Paste your JWT token into the input field above.
- Click Decode (or just paste — it auto-decodes).
- View the decoded header showing algorithm and token type.
- View the payload with all claims (sub, iat, exp, etc.).
- Check the expiry badge — green for valid, red for expired.
Why use this JWT decoder?
- 100% browser-based — your token never leaves your device.
- Expiry checker — instantly see if a token is valid or expired with time remaining.
- Copy per section — copy header, payload, or signature individually.
- No signup required — paste and decode instantly, no account needed.
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