JWT Decoder Online
Paste a JWT to decode its header and payload, inspect claims, and check expiration status.
Your files are processed locally in your browser. Nothing is uploaded or stored.
Features
Key features of JWT Decoder
Decode JWT tokens into readable header and payload JSON.
Display token expiration time in a human-readable format.
Validate JWT structure with three Base64URL-encoded parts.
Highlight expired tokens clearly.
Decode entirely in the browser without sending the token anywhere.
Benefits
Why use this tool
Inspect JWT claims during authentication debugging.
Check token expiration without writing code.
Keep sensitive tokens private by decoding locally.
Use cases
Common ways to use JWT Decoder
Debug authentication issues by inspecting token claims.
Check if a JWT has expired before making API calls.
Review token payloads during OAuth integration work.
Process
How to use JWT Decoder
Paste a JWT token.
View the decoded header and payload.
Check the expiration status.
Related tools
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Related guides
Guides for this tool
How to Decode JWT Tokens Online
Learn how to decode and inspect JWT tokens using a free browser-based tool. View header, payload, and expiration status without sending your token anywhere.
FAQ
Frequently Asked Questions
Is my JWT sent to a server?
No. The token is decoded entirely in your browser and never leaves your device.
Does this verify the JWT signature?
This tool decodes and inspects the token. Signature verification requires the signing key.
Is this tool free to use?
Yes. MultiTool Panda tools are free and do not require sign-up.
Does this tool work on mobile?
Yes. The interface is responsive and works in modern mobile browsers.
Do I need to install software?
No. The tool runs directly in your browser.