How to use JWT Token Decoder
- Start by adding the JWT you want to decode into JWT Token Decoder.
- Watch the output update instantly while you adjust the JWT.
- Finish by choosing Copy to take the output with you.
About this tool
JWT Token Decoder is a static, client-side tool with no backend. JWT Token Decoder splits and base64url-decodes a JWT locally so you can inspect its claims.
The token is parsed on your device and never transmitted. No data is sent anywhere, so it stays fast and private by default.
Frequently asked questions
What is JWT Token Decoder for?
Use JWT Token Decoder to decode your input without installing anything; everything happens client-side.
Do I need an account for JWT Token Decoder?
No — JWT Token Decoder needs no account, sign-up or installation.
Is my input private in JWT Token Decoder?
Yes — your input never leaves your device; JWT Token Decoder does all the work in your browser.
Does JWT Token Decoder verify the JWT signature?
JWT Token Decoder decodes the token locally so you can inspect its header and payload; verification needs the matching key.
Can I use JWT Token Decoder without a connection?
Yes — after the first load JWT Token Decoder runs entirely offline.