1. Paste JWT
Paste your JWT token into the input area.
JWT Decoder
Output
Note
Tools:
JWT Decoder
JWT Decoder
Processing...
JWT Token Input
Header (Algorithm & Token Type)
Payload (Claims & Data)
Signature
JWT Decoder is a free browser-based developer utility by ToolPix. All formatting, validation, and encoding tasks run 100% locally in client-side memory via JavaScript and WebAssembly — your source code, tokens, and data are never uploaded or stored on any server.
Quick Steps
2. Decode
Click Decode to parse the token instantly.
3. View Parts
See the decoded Header, Payload, and Signature separately.
4. Copy
Copy individual parts or the full decoded JSON.
FAQ
What is the JWT Decoder?
A free tool that decodes JSON Web Tokens (JWT) to view their header, payload, and signature.
Is it free?
Yes, completely free. Decoding happens locally in your browser.
Does it verify signatures?
No, this tool only decodes JWTs for inspection. It does not verify signatures.
Is my token data private?
Yes, all decoding is done locally. Your token never leaves your device.
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