JWT Tools

Decode tokens or generate new JWTs (HS* / RS256).

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How to use this tool
  1. Decode: paste a JWT and click Decode to see Header + Payload.
  2. Verify (optional): enable verification, paste the correct key, and choose allowed algorithms.
  3. Encode: pick algorithm, paste key + payload JSON, then click Generate JWT.
  4. Download: download links expire after a short time. Re-run Decode/Generate to refresh.
Security note: don’t paste real production secrets/tokens. Use test keys.

JWT Decoder

HS256: secret • RS256: PEM public key
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Tip: Decoding does not require secrets. Verification does.

Decoded

Paste a JWT and click Decode to see results here.