Free programming courses can help you learn coding languages like Python, JavaScript, and Ruby, along with foundational concepts such as algorithms and data structures. You can build practical skills in web development, software debugging, and creating applications, which are crucial for tackling real-world challenges.

University of Colorado Boulder
Skills you'll gain: Data Mining, Anomaly Detection, Unsupervised Learning, Data Warehousing, Machine Learning Methods, Supervised Learning, Data Pipelines, Data Preprocessing, Classification Algorithms, Data Processing, Data Modeling, Decision Tree Learning, Data Science, Data Management, Machine Learning Algorithms, Data Cleansing, Model Evaluation, Analytical Skills, Ideation, Exploratory Data Analysis
★ 4.1 (183) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Sampling (Statistics), Plot (Graphics), Statistical Methods, Descriptive Statistics, Statistical Visualization, Data Import/Export, Pareto Chart, Histogram, Statistical Programming, Descriptive Analytics, Statistical Analysis, R (Software), Box Plots, R Programming, Data Synthesis, Probability Distribution, Probability & Statistics, Exploratory Data Analysis, Statistics, Data Science
★ 4.6 (68) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: File I/O, Computer Programming, Programming Principles, Data Import/Export, Data Structures, Python Programming, Computer Science
★ 4.4 (92) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Bootstrap (Front-End Framework), Web Design and Development, Web Development, Web Applications, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Browser Compatibility, User Interface and User Experience (UI/UX) Design, User Experience Design, Requirements Analysis, Requirements Elicitation, Client Services, Javascript
★ 4.7 (52) · Mixed · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Model Evaluation, Machine Learning Algorithms, Model Optimization, Scikit Learn (Machine Learning Library), Model Training, Unsupervised Learning, Text Mining, Time Series Analysis and Forecasting, Pandas (Python Package), Classification Algorithms, Machine Learning, Applied Machine Learning, Supervised Learning, Predictive Modeling, Unstructured Data, Feature Engineering, Jupyter, Regression Analysis, Data Preprocessing, Python Programming
★ 4.6 (45) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: LangGraph, Generative AI Agents, AI Orchestration, LangChain, Agentic systems, AI Workflows, LLM Application, Agentic Workflows, OpenAI API, OpenAI, Large Language Modeling, Tool Calling, Retrieval-Augmented Generation, Artificial Intelligence, AI Integrations, Generative AI, Development Environment, Microsoft Azure, AI literacy, Microsoft Development Tools
★ 4.5 (188) · Intermediate · Specialization · 3 - 6 Months

Meta
Skills you'll gain: MySQL, Database Development, Django (Web Framework), Query Languages, Database Management, Database Application, SQL, Databases, Stored Procedure, Back-End Web Development, Python Programming, Application Programming Interface (API), Data Management
★ 4.3 (98) · Intermediate · Course · 1 - 4 Weeks

The University of Sydney
Skills you'll gain: Creative Thinking, Creativity, Creative Problem-Solving, Innovation, Ideation, Design Thinking, Open Mindset, Strategic Thinking
★ 4.7 (77) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Descriptive Statistics, Statistical Visualization, Data Transformation, Data Cleansing, Probability, Box Plots, Histogram, Probability Distribution, Probability & Statistics, Scatter Plots, Statistics, Microsoft Excel, Excel Formulas, Data Analysis, Statistical Methods, Spreadsheet Software, Bayesian Statistics
★ 4.6 (41) · Beginner · Course · 1 - 3 Months

Universidad Austral
Skills you'll gain: Web Scraping, Natural Language Processing, Data Integration, Data Processing, MLOps (Machine Learning Operations), Data Preprocessing, Machine Learning Algorithms, Data Cleansing, Artificial Neural Networks, Machine Learning Methods, Data Manipulation, Tensorflow, Applied Machine Learning, Text Mining, Jupyter, Pandas (Python Package), Application Lifecycle Management, AI Orchestration, Systems Architecture, Python Programming
★ 4.2 (56) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Data Structures, Algorithms, Graph Theory, Programming Principles, Theoretical Computer Science, Computer Science, Computer Programming, Python Programming, Pandas (Python Package), Machine Learning Algorithms, Computational Thinking, C++ (Programming Language), Data Architecture, Random Forest Algorithm, Performance Tuning, Object Oriented Programming (OOP), Network Analysis, Program Development, Problem Solving, Debugging
★ 4.5 (38) · Intermediate · Specialization · 3 - 6 Months

Vanderbilt University
Skills you'll gain: SQL, Generative AI, AI literacy, Data Visualization, Interactive Data Visualization, Query Languages, Prompt Patterns, Data Literacy, Data Analysis, Debugging, Exploratory Data Analysis, ChatGPT, Prompt Engineering, Databases, Context Engineering, Data Validation, Context Management, Code Reusability
★ 4.8 (78) · Beginner · Course · 1 - 4 Weeks