Codec/Bench

JWT Decoder

Your data stays in this browser.

Decode JWT headers and payloads without signature verification.

Token

Header

Payload

Signature

How to decode

  1. Paste compact JWT containing header, payload, and signature segments.
  2. Select Decode to inspect formatted JSON and encoded signature.
  3. Copy only output needed.

Decoding vs verification

Decoding reveals token contents. It does not verify signature, issuer, claims, or authenticity.