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token

JWT Encoder

Sign an HS256/384/512 token with a secret.

Payload

Secret

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info

Builds and signs the token in your tab with the Web Crypto API — the secret and payload never leave the page. The reverse lives in the JWT Decoder.

Other tools

Encode and decode Base64, including Unicode text.

Percent-encode strings and split query parameters.

Escape markup so it shows up as text.

Read the header and payload of a token.