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JWT Decoder

Decode JSON Web Tokens to inspect the header, payload, and signature. Check expiration and claims instantly.

Paste a JWT token to decode its header, payload, and signature

Features

Full Decode

Splits the JWT into header, payload, and signature with formatted JSON display.

Expiration Check

Automatically detects and displays token expiration status with clear visual indicators.

Privacy First

All decoding happens in your browser. Your tokens are never sent to any server.