Free courses can help you learn coding languages like Python and JavaScript, data analysis techniques, and web development fundamentals. You can build skills in problem-solving, algorithm design, and creating interactive websites. Many courses introduce tools such as Git for version control, SQL for database management, and various frameworks that streamline web development, allowing you to apply your skills in practical projects.

University of Colorado Boulder
Skills you'll gain: Business Analytics, Risk Analysis, Data-Driven Decision-Making, Decision Making, Simulation and Simulation Software, Risk Modeling, Business Modeling, Data Analysis, Market Analysis, Unsupervised Learning, Model Optimization, Statistical Methods, Microsoft Excel, Spreadsheet Software, Exploratory Data Analysis, Probability Distribution
★ 4.6 (1.9K) · Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: DevSecOps, Infrastructure Security, Cyber Governance, Zero Trust Network Access, Threat Detection, Security Engineering, IT Security Architecture, Threat Modeling, Endpoint Detection and Response, Security Information and Event Management (SIEM), Cyber Threat Hunting, Enterprise Architecture, Cloud Infrastructure, Application Security, Network Security, Identity and Access Management, Cyber Security Policies, Governance Risk Management and Compliance, Risk Analysis, Role-Based Access Control (RBAC)
Advanced · Professional Certificate · 3 - 6 Months

Northwestern University
Skills you'll gain: Social Media, Social Media Marketing, Target Audience, Social Media Strategy, Digital Transformation, Professional Networking, Social Media Analytics, Marketing Strategies, Social Network Analysis, Community Development
★ 4.6 (4.2K) · Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Marketing Automation, Customer Analysis, Email Marketing, Data-Driven Marketing, Customer Insights, Cross-Channel Marketing, Promotional Strategies, Marketing Effectiveness, Campaign Management, Promotions and Campaigns, Email Automation, Marketing Strategies, Personalized Campaigns, Product Lifecycle Management, Performance Measurement, Customer Retention, A/B Testing, E-Commerce, Sales, B2B Sales
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, Anthropic Claude, Claude Code, Prompt Patterns, Context Engineering, AI literacy, Google Workspace, AI Enablement, AI Personalization, Office Administration, Vibe coding, Productivity Software, Workflow Management, Agentic Workflows, Administrative Support and Clerical Tasks, Business Workflow Analysis, OpenAI, AI Workflows, Generative AI Agents, Automation
Beginner · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Apache Spark, Apache Hadoop, Data Integration, Big Data, Data Pipelines, Data Processing, Data Management, NoSQL, Database Management Systems, Analytics, Splunk, Database Systems, MongoDB, Pandas (Python Package), Query Languages, PostgreSQL
★ 4.4 (2.4K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Salesforce Development, Salesforce Object Query Language (SOQL), Force.com, Salesforce, Unit Testing, Code Coverage, Development Testing, Test Case, Application Programming Interface (API), Restful API, Web Services, Development Environment, Maintainability, Software Development Tools, Integrated Development Environments, Transaction Processing, Data Management, Software Installation
Intermediate · Course · 1 - 3 Months
University of California, Irvine
Skills you'll gain: Grammar, Vocabulary, English Language, Language Competency, Language Learning
★ 4.8 (1.4K) · Mixed · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Active Listening, Oral Comprehension, Concision, Learning Strategies, Critical Thinking, English Language, Verbal Communication Skills, Detail Oriented, Public Speaking, Analytical Skills, Organizational Skills, Communication Strategies
★ 4.5 (987) · Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: Statistical Hypothesis Testing, Statistical Inference, Statistical Reporting, R (Software), Statistical Methods, Statistics, R Programming, Statistical Software, Statistical Analysis, Probability & Statistics, Statistical Programming, Data Analysis, Sampling (Statistics), Probability Distribution, Software Installation
★ 4.8 (2.8K) · Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Tidyverse (R Package), Clinical Data Management, Extract, Transform, Load, Data Modeling, Clinical Research, R (Software), Health Insurance Portability And Accountability Act (HIPAA) Compliance, Medical Privacy, Data Manipulation, Predictive Modeling, Clinical Research Ethics, Database Design, Data Mapping, Clinical Informatics, Data Quality, Natural Language Processing, grep, Informatics, Text Mining, R Programming
★ 4.4 (502) · Intermediate · Specialization · 3 - 6 Months

Michigan State University
Skills you'll gain: Peer Review, Writing and Editing, Editing, Storytelling
★ 4.5 (796) · Mixed · Course · 1 - 3 Months