SnapFix

JWT Decoder Online

Decode JWT header and payload JSON in your browser — no signature verification.

Runs in browser

JWT decoder

Decode only · On-device

Privacy: Your token stays on your device and is never sent to SnapFix.

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How it works

  1. Step 1

    Paste JWT

    Enter a JSON Web Token.

  2. Step 2

    Decode

    View header and payload JSON.

  3. Step 3

    Inspect claims

    Use the decoded payload for debugging.

About this tool

Inspect JSON Web Token claims for debugging. This tool decodes only; it does not verify signatures or trust the token.

FAQ

Does this verify the signature?+

No. This decoder is for inspection only and does not validate signatures.