Paste a token
Add a sample JWT.
Code & Data Tool
JWT Decoder
Decode header, payload, expiry, and token metadata.
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About this tool
What is JWT Decoder?
JWT Decoder reads a JSON Web Token and shows its header, payload, expiry and other metadata. Decoding does not verify the signature.
Useful when you need to
- Check the claims in a test token
- See when a token expires
- Learn how JWTs are built
How to use
How to use JWT Decoder
01 02 Decode
Run the tool.
03 Read the claims
Check header, payload and expiry.
04 Copy
Copy what you need.
Tips
Get better results
- Do not paste production tokens or secrets.
- Decoding does not prove the token is valid.
FAQ
Frequently asked questions
Can it verify a signature?
No.
Is the token uploaded?
No, decoding happens locally.
What is the exp claim?
The expiry time as a Unix timestamp.
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