JWT InspectorNew
Decode JWT tokens — inspect header, payload, expiry countdown, and security analysis.
100% Client-Side · No Upload
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What is JWT Inspector?
JWT Inspector decodes JSON Web Tokens (JWT) side-by-side. It extracts header settings, payload claims, and signatures, calculates token expiration count downs, and runs local security analysis.
How to use JWT Inspector?
1
Paste the raw JSON Web Token (`header.payload.signature`) into the token entry area.
2
The tool automatically decodes the fields in real-time.
3
View parsed values, including claims lists and signature status.
4
Check the security reports highlighting token expiration status or algorithm risks.
Interactive Example
Decoded payload exampleJSON
Input / Sample Source
eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...Output / Result
Header: {"alg":"HS256","typ":"JWT"}
Payload: {"sub":"saish","admin":true}Benefits & Features
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Real-Time AnalysisDecodes tokens instantly as you paste.
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Security AuditsEvaluates weak algorithm flags, key risks, and verification statuses.
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Time CountdownShows token active status and time until expiration.
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Offline SandboxProtects authentication credentials by executing entirely client-side.