JWT.io

jwt.io

Decode, verify, and generate JSON Web Tokens online

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JWT.io screenshot
/ About /

JWT.io is a free online tool for decoding, validating, and generating JSON Web Tokens (JWTs). It allows developers to inspect the header and payload of a JWT and verify its signature using a secret. The site also serves as an educational resource explaining the JWT standard.

/ How it works /

Users paste a JWT into the decoder, which splits it into header and payload components and optionally verifies the signature against a provided secret.

/ Who it's for /

software developers working with authentication and APIs

/ More info /

Background.

Status
launched
Business model
free
Company
Auth0
/ Discovered patterns /

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