JWT Decoder
Decode JSON Web Tokens to see the header, payload and expiry date. Runs locally — your token is never sent anywhere. Free JWT debugger.
✓ 100% free ✓ No sign up ✓ Runs in your browser — nothing uploaded
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Result
How to use JWT Decoder
- 1Paste or type your text in the left box (or open a file).
- 2The converted result appears instantly on the right.
- 3Copy it with one click or download it as a file.
Questions
Is JWT Decoder free?
Yes. JWT Decoder is 100% free with no limits, no watermark, no sign up and no email required.
Is my data sent anywhere?
No. Everything is calculated locally in your browser. Nothing you type is sent to or stored on any server.
Does JWT Decoder work on my phone?
Yes. JWT Decoder works in any modern browser on iPhone, Android, Windows, Mac, Linux and Chromebook. No app or install needed.
Do I need to create an account?
Never. There is no sign up, no login, no email and no paywall. Just open the page and use it.