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đŸŽĢ JWT Decoder

Decode the header and payload of a JSON Web Token.

How to use the JWT Decoder

  1. Enter JWT token.
  2. The result updates instantly as you type.
  3. Copy or note down your result.

How it works

This tool only decodes; it does not verify the signature.

Example

Using the default values (JWT token: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIn0.sig):

{
  "alg": "HS256",
  "typ": "JWT"
}

{
  "sub": "1234567890",
  "name": "John Doe"
}

FAQ

Is the JWT Decoder free to use?

Yes. It is free, needs no signup and has no usage limits.

Is my data safe?

Yes. Everything is calculated in your browser, so what you type or upload is never sent to a server.

Can I use it on my phone?

Yes. KsWebProduction is built mobile-first and works in any modern browser.

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