devvkit / dev
JWT Decoder
Decode and inspect JWT tokens: header, payload, signature, expiration.
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Decode and inspect JWT tokens without sending them anywhere. View the header, payload, signature, and expiration details with full client-side decoding and validation.
>[x]Features
- -Decode JWT header, payload, and signature components
- -View expiration, issued-at, and not-before timestamps
- -Verify token expiration status at a glance
- -Highlight algorithm, type, and key ID from the header
- -Paste and decode instantly: no click required
- -All processing stays client-side, nothing is transmitted
>>Use Cases
- >Debugging authentication tokens during API development
- >Inspecting third-party JWT tokens for security review
- >Verifying token claims and expiration during integration testing
- >Learning JWT structure for educational purposes