JWT Decoder — Free Online Tool

Decode & inspect JWT tokens (header, payload, signature). JWT Decoder is a free online tool from the ToolsRift Encoders & Decoders collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.

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How to use JWT Decoder

  1. Open the JWT Decoder above — it loads instantly, no account needed.
  2. Enter or upload your input. Everything is processed locally on your device.
  3. Get your result immediately and copy or download it with one click.

Frequently asked questions

Is it safe to paste my JWT here?

Never paste production tokens in public tools. This tool runs entirely in your browser with no server transmission.

Can it verify the signature?

Signature verification requires the secret key. This tool decodes the header and payload only.

What are the three JWT parts?

Header (algorithm), Payload (claims/data), Signature (verification). Separated by dots.

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