JWT Decoder.
Encode, decode and verify JSON Web Tokens (JWT) with ease.
Local JWT inspection and HS256 signatures. No token or secret is sent to a server. This is not an authentication validator: issuer, audience, expiry and authorization are not checked. Use test data and test keys.
JWT Input
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The secret is interpreted as UTF-8 text, not Base64 or PEM. Use a random key of at least 32 bytes.
No secret: the signature will not be verified. Decoded claims must not be trusted.
About JWT Decoder
JWT Tool helps you encode and decode JSON Web Tokens (JWT).
This tool helps you:
- Encode JSON data into a JWT
- Decode JWT back to its original JSON format
- Verify JWT signatures with a secret key
- Inspect JWT header and payload