Learn JavaScript
Begin your web development journey with our JavaScript course. Explore dynamic scripting for interactive web solutions.
Learn JavaScript is a beginner-level online course from Codecademy in JavaScript. It is structured in 10 modules with 3 stated learning outcomes, over 15h. It is free to enrol, and a certificate is available on completion. Learners rate it 4.5/5 from 33K ratings on Codecademy.
Part of our JavaScript courses collection, where we compare it against 12 other courses.
Course highlights
| Provider | Codecademy |
| Duration | 15h |
| Level | Beginner |
| Mode | Self-paced |
| Language | English |
| Certificate | Yes — shareable certificate |
| Rating | 4.5★ (33K reviews) |
| Price | Free |
About this course
JavaScript powers interactive websites. It runs in every browser and lets you add animations, form validation, and dynamic updates without reloading the page. The Codecademy Learn JavaScript course builds from the ground up, starting with core programming concepts and moving into the specific tools and structures that make web pages respond to users.
You start with variables and data types, then move into conditionals that let your code make decisions. Functions group reusable blocks of code, while scope controls where those variables live and what they can access. The course then covers arrays for storing lists of data, loops for repeating tasks, and iterators for stepping through collections. Objects wrap related data and methods together, and you finish with next-step topics that point toward more advanced JavaScript.
By the end you can write a small script that handles user input, validates a form field, and updates part of a web page. You will also be ready to move into DOM manipulation, event handling, or any of the deeper JavaScript topics the alternatives section lists.
This course is free, self-paced, and designed for beginners. It takes about 15 hours to complete and includes a certificate when you finish. If you already know the basics and want more depth, the alternatives section has longer, paid options that cover algorithms, data structures, and full-project building.
What you’ll learn
Level and time commitment
What this course covers
10 modulesThe 10-part outline Codecademy publishes for this course, across 15h.
Module 1 · Welcome to Learn JavaScript
Module 2 · Introduction
Module 3 · Conditionals
Module 4 · Functions
Module 5 · Scope
Module 6 · Arrays
Module 7 · Loops
Module 8 · Iterators
Module 9 · Objects
Module 10 · Next Steps
What learners rate it
Rated 4.5/5 by 33K learners on Codecademy (checked 10 Aug 2026).
This rating is collected by Codecademy from its own enrolled learners. We reproduce it as reported and do not accept paid or incentivised reviews. See it on Codecademy →
Compiled by the CoursesGlobal editorial desk. Fees, ratings, duration and certificate details for the 1 course shown are read directly from Codecademy course pages — we never estimate a price or a rating. Last verified 10 August 2026.
How we compare and rank courses · Our review policy · Affiliate disclosure
Compare with alternatives
Same topic, different trade-offs — here's who runs each one and what it's best at.
| Course | Provider | Rating | Price | Duration | Why pick this one |
|---|---|---|---|---|---|
| Learn JavaScript This | Codecademy | 4.5★ | Free | 15h | Quickest to finish (15h) |
| The Complete JavaScript Course 2026: From Zero to Expert |
 Udemy
|
4.7★ | Free | 69 hours | Highest rated (4.7★ from 233.9K reviews) |
| JavaScript Algorithms and Data Structures |
 freeCodeCamp
|
4.7★ | Free | 300 hours | Free — and still gives a certificate |
| Modern JavaScript From The Beginning |
Udemy
|
4.7★ | ₹549 | 22 hours | Cheapest paid option (₹549) |
Where JavaScript leads
Roles we map to JavaScript on CoursesGlobal. This is our own mapping of subject to job, not a placement claim by Codecademy.
Browse every course we track for one of these — courses for full-stack developers.
Common questions
Is Learn JavaScript free?
Yes. Codecademy lists it as free to enrol. A certificate is available on completion — providers often charge separately for the certificate even when the course itself is free, so check the fee on the provider page before you count on it.
Does Learn JavaScript come with a certificate?
Yes — Codecademy lists a certificate on completion. It is a course certificate, not a formal qualification or university credit.
How long does Learn JavaScript take?
Codecademy lists it at 15h. It is self-paced, so that is the volume of material rather than a deadline — how long it actually takes depends on the hours you put in each week.
Is Learn JavaScript suitable for beginners?
Yes. Codecademy lists it at Beginner level, so no prior experience in the subject is assumed.
What does Learn JavaScript cover?
It is organised into 10 modules, starting with Welcome to Learn JavaScript and going on to Introduction, Conditionals, Functions, Scope, among others. The full outline is on this page.