How to use it
Enter non-sensitive test data, inspect the output, and verify its format before using it in a project.
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JWT Token Decoder
Decode JWT header and payload data locally in your browser without verifying the signature.
HEADER
// decoded data
PAYLOAD
// decoded data
보안: 토큰은 브라우저 안에서만 디코딩되며 서명 유효성은 검증하지 않습니다.
TOOL GUIDE
When to use it
Content reviewed · 2026-07-24
Decode JWT header and payload data locally in your browser without verifying the signature.
Before you rely on the result
Verify supported formats and the generated file in the service where you plan to use it.
Data handling
Inputs and files are processed in this browser and are not uploaded for the task.
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