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Front End Development Libraries Certification

4.8(11,000) on freeCodeCamp·1.8M enrolled
Intermediate 300 hours English Course CertificateFREE
SkillsReactReduxSassBootstrapjQueryFront-end development

Is this course right for you?

Our take
Yes, if you already know JavaScript and want to learn React the practical way. It is free, the certificate is free, and you learn by building real projects.

Good for: learners who know JavaScript and want to learn React and front-end libraries.

Skip if: you are new to JavaScript, or you only want vanilla JavaScript.

The reason to take it is React, which is the dominant front-end framework and what most junior front-end roles ask for. You build five projects — a calculator, a pomodoro clock, a data-visualisation board — that double as portfolio pieces, so you finish with something to show, not just notes.

It expects you to know JavaScript already, so do Responsive Web Design and the JavaScript certification first. It also teaches some older tools alongside the current ones (jQuery, Bootstrap) that modern React work leans on less, so treat those as background. The curriculum is free and kept current (as of 2026).

Comparison · LBS

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About this course

This certification is where freeCodeCamp's front-end path gets into modern JavaScript frameworks: React for building component-based UIs, Redux for state management, Bootstrap for rapid responsive layouts, Sass for maintainable CSS, and jQuery for DOM manipulation. Five certification projects — including a JavaScript calculator, pomodoro clock, and data visualization board — serve as both learning milestones and portfolio pieces.

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Instructor

FT
freeCodeCamp Team
freeCodeCamp instructor
1.8M+ learners12 courses4.8 instructor rating

Produced by freeCodeCamp, a nonprofit providing free, project-based coding certifications used by millions of learners worldwide.

Frequently asked questions

A bit of both, and it's worth knowing which is which. The React and Sass sections are still relevant, but the certificate also covers jQuery, Bootstrap and classic Redux, which matter far less in new projects today — jQuery especially. Focus your effort on the React; treat the jQuery and older-Redux parts as background rather than what you'll reach for first.

Yes, genuinely. It builds directly on JavaScript — React and Redux assume you're comfortable with functions, arrays, objects and modern ES6 syntax. If your JavaScript is shaky, do freeCodeCamp's JavaScript certification first, or you'll spend this course copying code you can't yet reason about.

Single-page applications with React — the certificate ends in React and Redux projects, which is the point where your static pages become interactive apps. A natural next step is adding a backend, such as Node and APIs, so you can build full-stack rather than front-end only.
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