JWT Decoder
Securely decode JSON Web Tokens entirely in your browser.
{}{}What is a JWT Decoder?
JSON Web Tokens (JWT) are base64-encoded strings used to securely transmit information between parties. Because they are only encoded, not encrypted, anyone can decode the header and payload. Our JWT Decoder unpacks these strings instantly and formats the underlying JSON structure securely within your browser.
How to use
- 1Paste your full encoded JSON Web Token into the left text area.
- 2The tool will instantly decode the base64-encoded string.
- 3The Header section reveals the algorithm and token type.
- 4The Payload section reveals the claims and user data stored inside.