TLDR Web Dev · ARTICLES & TUTORIALS

WHAT IS JWT?

blog.postman.com8 min read

Summary from the TLDR Web Dev newsletter

JSON Web Tokens (JWTs) are an open standard for securely sharing JSON data between parties through encoding and digital signatures. They are used for API authentication, data transfer, and authorization workflows. JWTs consist of three parts: a header, payload, and signature, and can be used to securely transmit data between various systems. While JWTs offer benefits like statelessness, efficiency, and interoperability, they also pose challenges such as security risks, token size, and limited central control.