DevTools Usage

Lesson in the Frontend Developer Roadmap · Stage 31: Performance

Last updated 14 September 2026

What is DevTools Usage?

DevTools are a set of web developer tools built directly into web browsers. They allow you to inspect and debug HTML, CSS, and JavaScript, monitor network activity, analyze performance bottlenecks, and more. By using DevTools, frontend developers can understand how their code is executed in the browser and identify areas for optimization.

Study this in the interactive course See the whole Frontend roadmap

Free resources to learn DevTools Usage

ArticleWhat are browser developer tools?
ArticleWhat are Developer Tools?
ArticleGoogle DevTools
VideoUnderstand Browser Dev Tools Network Tab (and avoid these mistakes...)

DevTools Usage: common questions

Can I learn DevTools Usage 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 DevTools Usage 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 DevTools Usage tutorial for beginners?

It is lesson 100 of 120 in the free Frontend roadmap, in stage 31, Performance. If you are new to Frontend, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.