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Developer ToolsJWT Decoder
Processed 100% locally in your browser

JWT Decoder

Decode a JWT's header and payload instantly — processed 100% locally, signature never verified server-side.

Quick Answer

JWT Decoder lets you: Decode a JWT's header and payload instantly — processed 100% locally, signature never verified server-side. To start, paste a JSON Web Token into the input field.

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How to use this tool

  1. 1

    Paste your JWT

    Paste a JSON Web Token into the input field.

  2. 2

    Automatic decoding

    The header and payload are decoded from Base64URL and shown as formatted JSON.

  3. 3

    Check expiry

    If an exp claim is present, its expiration status is highlighted.

Frequently Asked Questions

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