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JWT Decoder
Decode and inspect JSON Web Tokens (JWT). View header, payload, and verify structure.
How to Use This JWT Decoder
Decode and inspect JSON Web Tokens (JWT) instantly. View the header, payload, and signature. Check expiration status at a glance.
- Paste your JWT token into the input field
- Click "Decode" to parse the token
- View the color-coded header, payload, and signature
- Check the expiration status if an exp claim exists
FAQ
What is a JWT?
A JSON Web Token (JWT) is a compact, URL-safe token format used for securely transmitting information between parties. It consists of three parts: header, payload, and signature.
Can this tool verify JWT signatures?
This tool decodes and displays JWT contents but does not verify signatures, as that requires the secret key or public key used to sign the token.
Is my token safe?
Yes. All decoding happens entirely in your browser. Your JWT is never sent to any server.
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