Decode & Inspect JWT Tokens Fast & Privately
Decode and inspect JSON Web Tokens client-side with 3-part color-coded display, live Unix timestamp parser, and HMAC-SHA256 signature verification.
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How to Use JWT Debugger & Token Decoder
- 1
Paste JWT Token
Input your encoded JWT string into the editor or click 'Load Sample Token'.
- 2
Inspect Color-Coded Parts
Review the decoded Header (Rose), Payload data claims (Purple), and live expiration timers.
- 3
Verify Signature
Enter your HMAC-SHA256 secret key to test signature validity directly in browser memory.
Frequently Asked Questions
EarnovaJWT decodes the 3 Base64Url-encoded segments of your JSON Web Token locally into a color-coded Header (Rose), Payload (Purple), and Signature (Cyan).
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