Dev ToolsJanuary 5, 2026
JWT Decoder: How to Decode and Debug JWT Tokens
Decode JSON Web Tokens to view header, payload, and expiration. Debug JWT authentication issues with our free online decoder.
JSON Web Tokens (JWT) are everywhere in modern authentication. Learn how to decode JWT tokens to debug authentication issues.
What is a JWT?
A JWT consists of three parts: Header, Payload, and Signature - separated by dots.
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