JWT Decoder

Decode and inspect JSON Web Tokens. Runs in your browser. Completely private.

No sign-up Batch convert 100% free

How to Use JWT Decoder

1

Choose & Upload

Paste a JWT token into the input field

2

Convert

View the decoded header, payload, and signature

3

Download

Check token expiration time and other claims

4

Step 4

Verify the token structure without needing your secret key

Frequently Asked Questions