freeCodeCamp

Free courses100% freeLevel: Intermediate

freeCodeCamp

4.5/52dm rating

Completely free, including certificates.

A nonprofit that teaches coding completely free, including certificates, with learning paths in Python, data analysis and machine learning.

Official site How to use it

Overview

freeCodeCamp was started by Quincy Larson in 2014 and is now a 501(c)(3) charity in the US, funded by donations. Its about page states that everything is 100% free, including courses, projects and certificates.

Learners work through dozens of step-by-step projects right in the browser, code editor or mobile app. Each certificate is estimated at about 300 hours of study and requires completing 5 mandatory projects. The data and AI related certificates include Scientific Computing with Python, Data Analysis with Python and Machine Learning with Python.

Beyond the website, the freeCodeCamp YouTube channel posts many long free courses, including ones on machine learning. The website is available in English, Spanish, Chinese, Italian, Portuguese, Ukrainian, Japanese and Korean; there is no Vietnamese yet.

Highlights

Completely free

Courses, projects and certificates cost nothing, run by a nonprofit.

Learning by projects

Each certificate requires 5 real projects, giving you work to present.

Data and AI path

Scientific Computing with Python, Data Analysis with Python, Machine Learning with Python.

Long-course YouTube channel

Many full courses free, for example Machine Learning with Python and Scikit-Learn.

Flexible learning

Self-paced learning in the browser or mobile app.

What it's for

Training staff for automation

Operations staff learn Python to write scripts that process files and call APIs, preparing for AI automation projects.

Business data analysis

Report builders learn Data Analysis with Python to analyze sales data with Pandas.

Getting started with machine learning

A technical team takes Machine Learning with Python to understand neural networks and natural language processing.

Building your own business website

Small business owners take the web certificates to edit their showcase pages and landing pages themselves.

How to use it

1
Visit freeCodeCamp
Open freecodecamp.org and create an account to save progress.
2
Choose a suitable certificate
Newcomers to data should start with Scientific Computing with Python, then Data Analysis with Python.
3
Work step by step
Learn through short exercises in the browser, where code runs and is checked immediately.
4
Complete the 5 mandatory projects
Each certificate requires passing all tests of the 5 projects to be awarded.
5
Supplement with YouTube videos
Watch the long courses on the freeCodeCamp.org channel when you need deeper explanation of a topic.

Video guides

Machine Learning with Python and Scikit-Learn – Full Course
freeCodeCamp.org

Real-world example

Illustrative scenario

A small print shop receives orders through many channels and has to re-enter data by hand. A self-motivated office employee spends an hour each evening learning Python on freeCodeCamp, and after a few months writes a script that gathers orders from each channel's export file into one shared table. From this foundation, the company can move on to connecting AI tools to automatically classify orders and draft confirmation messages.

Tips & notes

Set a fixed study schedule
Each certificate is about 300 hours, so you need a regular weekly plan to avoid giving up halfway.
Prioritize the Python path
For AI and automation goals, Python is the most useful language to learn first.
Put projects in your portfolio
The mandatory projects are good evidence of ability for hiring or internal evaluation.
Ask on the forum
When stuck, use the freeCodeCamp community forum for help.