100% localNew
Use this toolJWT decoder
Inspect the data contained in a JWT locally without sending the token to a server.
- 100% local
- Instant
- Free
- No account
- Works offline
- Clipboard
The token is decoded only; its signature is not verified.
The JWT token is invalid.
Inspect a JWT header and payload locally. Decoding does not automatically verify its signature.
Guide
How to use this tool
- 1
Paste the token
Add the complete JWT in the input field.
- 2
Decode the sections
Review the header and payload as JSON.
- 3
Check the claims
Check expiry dates, issuer and other claims.
Tips and best practices
- Work on a copy when your data is important.
- Review the result before reusing it in another application.
- Processing takes place directly in your browser.
Frequently asked questions
Is a decoded JWT necessarily valid?
No. Reading its contents does not prove authenticity or signature validity.
Is my data uploaded?
No. Processing happens locally in your browser.
Can I use this tool for free?
Yes. The tool is free and requires no account.
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