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JavaScript Certification

freeCodeCamp's rebuilt JavaScript certification: language basics to DOM, events and async code.

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About this course

The 2025 successor to freeCodeCamp's JavaScript Algorithms and Data Structures certification. Modules combine lessons, workshops, labs and quizzes on variables, functions, loops, objects, higher-order functions, the DOM, events and asynchronous JavaScript, ending with five projects and a free exam.

Best for: Beginners who want a free, exam-backed JavaScript credential.

What you will be able to do

  • Write clean JavaScript with functions, loops and objects
  • Use higher-order functions
  • Manipulate the DOM and handle events
  • Work with asynchronous code

Syllabus and your progress

Tick modules off as you finish them on freeCodeCamp.

0 of 7 modules done

Plan your pace

At 4 hours a week you would finish in about 75 weeks, using the course time estimate above.

Progress is saved in this browser only. No account needed.

Cost and certificate

Free certificate

Free certification: complete the five certification projects and pass the free 50-question exam.

Before you start: Basic HTML and CSS helps

freeCodeCamp sets the terms and can change them. Check the course page before you commit serious time, and tell us if something changed.

Quick answers

Is JavaScript Certification really free?
Yes, the course material is free on freeCodeCamp. Free certification: complete the five certification projects and pass the free 50-question exam.
How long does JavaScript Certification take?
Plan for about 300 hrs in total (freeCodeCamp's September 2025 announcement put each new certification at about 300 hours of coursework.). It is interactive, so you can go faster or slower.
Do I need experience before JavaScript Certification?
It helps to have: Basic HTML and CSS helps.

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JavaScript Certification

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