JWT

Lesson in the Backend Roadmap for Beginners · Stage 5: Learn about APIs

Last updated 14 September 2026

What is JWT?

JWT (JSON Web Token) securely transmits information as JSON objects with three parts: header (token type/algorithm), payload (claims/data), and signature (integrity verification). Used for authentication and authorization in web/mobile apps. Compact, self-contained, and HTTP header-friendly.

Study this in the interactive course See the whole Backend Beginner roadmap

Free resources to learn JWT

Official docsjwt.io Website
ArticleWhat is JWT?
ArticleJWT Security Best Practices
VideoWhat Is JWT and Why Should You Use JWT
FeedExplore top posts about JWT

JWT: common questions

Can I learn JWT in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain JWT in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this JWT tutorial for beginners?

It is lesson 15 of 26 in the free Backend Beginner roadmap, in stage 5, Learn about APIs. If you are new to Backend Beginner, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.