How to use the JWT Decoder
- Paste your input
- The result updates as you type
- Copy or download the output
About the JWT Decoder
Inspect JSON Web Tokens: see the decoded header and claims, human-readable issued/expiry times, and verify HMAC signatures, all without sending your token anywhere.
Instant resultsEverything updates live as you type. No buttons to wait on.
PrivateYour input never leaves your browser and is never stored.
Free foreverNo signup, no limits and no paywall.
Works offlineInstall the site as an app and use it anywhere.
JWT Decoder FAQ
Is the JWT Decoder free?
Yes, it is 100% free with no signup, no watermarks and no usage limits.
Is my data private?
Yes. Everything is calculated in your browser. Nothing you type is sent to or stored on a server.
Does it work on phones and tablets?
Yes. The tool works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux.