JWT Decoder
Decode and analyze JSON Web Tokens (JWT). Inspect headers, payload, and verify token validity with detailed information about claims and expiration.
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How to Use JWT Decoder
- Paste your JWT token in the input field
- Token is automatically decoded or click 'Decode' button
- View decoded Header, Payload, and Signature sections
- Check token validity, expiration, and key claims
- Use 'Copy' buttons to copy individual sections
Frequently Asked Questions
Yes, EZ2Conv's JWT Decoder is 100% free with no hidden fees, usage limits, or premium tiers. You can decode unlimited JWT tokens without any cost.
Absolutely. All JWT decoding happens entirely in your browser - your tokens are never sent to any server. This client-side processing ensures your sensitive authentication data remains completely private and secure.
No registration or login is required. Simply paste your JWT token and get instant results. No email, no account creation, no personal information needed.
This tool decodes and displays JWT contents (header, payload, signature) but does not perform cryptographic signature verification. It's designed for inspection and debugging purposes. For production signature verification, use server-side libraries with your secret key.
You can view the complete JWT structure: the header (algorithm and token type), payload (all claims including issuer, subject, expiration, issued-at time, and custom claims), and the encoded signature. The tool also shows token validity status and expiration information.