Welcome to freeCodeCamp.org's open source codebase and curriculum!

freeCodeCamp.org is a friendly community where you can learn to code for free. It is run by a donor-supported 501(c)(3) nonprofit with the goal of helping millions of busy adults transition into tech. Our community has already helped more than 10,000 people get their first developer job.

Our full stack web development curriculum is completely free and self-paced. We have thousands of interactive coding challenges to help you expand your skills.

Table of Contents

• Certifications
• The Learning Platform
• Found a Bug
• Found a security issue
• Contributing
• License

Certifications

freeCodeCamp.org offers several free developer certifications. Each of these certifications involves building 5 required web app projects, along with hundreds of optional coding challenges to help you prepare for those projects. We estimate that each certification will take a beginning programmer around 300 hours to earn.

Each of these 30 projects in the freeCodeCamp.org curriculum has its own agile user stories and automated tests. These help you build up your project incrementally, and ensure you've fulfilled all the user stories before you submit it.

You can pull in these test suites through freeCodeCamp's CDN. This means you can build these projects on websites like CodePen and Glitch - or even on your local computer's development environment.

Once you’ve earned a certification, you will always have it. You will always be able to link to it from your LinkedIn or résumé. And when your prospective employers or freelance clients click that link, they’ll see a verified certification specific to you.

The one exception to this is in the event that we discover violations of our Academic Honesty Policy. When we catch people unambiguously plagiarizing (submitting other people's code or projects as their own without citation), we do what all rigorous institutions of learning should do - we revoke their certifications and ban those people.

Here are our six core certifications:

1. Responsive Web Design Certification

• Basic HTML and HTML5
• Basic CSS
• Applied Visual Design
• Applied Accessibility
• Responsive Web Design Principles
• CSS Flexbox
• CSS Grid
  
  Projects: Tribute Page, Survey Form, Product Landing Page, Technical Documentation Page, Personal Portfolio Webpage

2. JavaScript Algorithms and Data Structures Certification

• Basic JavaScript
• ES6
• Regular Expressions
• Debugging
• Basic Data Structures
• Algorithm Scripting
• Object Oriented Programming
• Functional Programming
  
  Projects: Palindrome Checker, Roman Numeral Converter, Caesars Cipher, Telephone Number Validator, Cash Register

3. Front End Libraries Certification

• Bootstrap
• jQuery
• Sass
• React
• Redux
• React and Redux
  
  Projects: Random Quote Machine, Markdown Previewer, Drum Machine, JavaScript Calculator, Pomodoro Clock

4. Data Visualization Certification

• Data Visualization with D3
• JSON APIs and Ajax
  
  Projects: Bar Chart, Scatterplot Graph, Heat Map, Choropleth Map, Treemap Diagram

5. APIs and Microservices Certification

• Managing Packages with Npm
• Basic Node and Express
• MongoDB and Mongoose
  
  Projects: Timestamp Microservice, Request Header Parser, URL Shortener, Exercise Tracker, File Metadata Microservice

6. Information Security and Quality Assurance Certification

• Information Security with HelmetJS
• Quality Assurance and Testing with Chai
• Advanced Node and Express
  
  Projects: Metric-Imperial Converter, Issue Tracker, Personal Library, Stock Price Checker, Anonymous Message Board

Full Stack Development Certification

Once you earn all 6 of these certifications, you'll be able to claim your freeCodeCamp.org Full Stack Development Certification. This final distinction signifies that you’ve completed around 1,800 hours of coding with a wide range of web development tools.

Legacy Certifications

We also have 3 legacy certifications from our 2015 curriculum, which are still available. All of the required projects for these legacy certifications will remain available on freeCodeCamp.org.

• Legacy Front End Development Certification
• Legacy Data Visualization Certification
• Legacy Back End Development Certification

The Learning Platform

This code is running live at freeCodeCamp.org.

Our community also has:

• A super active forum
• Thousands of local study groups around the world, where you can code together in person
• Medium's largest technical publication
• A popular YouTube channel
• A comprehensive guide to thousands of programming topics

Join our community here.

Found a bug?

If you think you've found a bug, first read the Help I've Found a Bug article and follow its instructions. If you're confident it's a new bug, and have confirmed that someone else facing the same issue, go ahead and create a new GitHub issue. Be sure to include as much information as possible so we can reproduce the bug.

Found a security issue?

Please don't create GitHub issues for security issues. Instead, please send an email to security@freecodecamp.org and we'll look into it immediately.

Contributing

Please follow these steps to contribute.

License

Copyright © 2018 freeCodeCamp.org

The content of this repository bound by the following licenses:

• The computer software is licensed under the BSD-3-Clause License.
• The curricular content in the /curriculum folder and its subdirectories are licensed under the CC-BY-SA-4.0 License.