Software testing courses can help you learn test planning, test case design, automated testing, and performance testing. You can build skills in identifying bugs, writing effective test scripts, and using various testing methodologies. Many courses introduce tools like Selenium for automation, JUnit for unit testing, and JIRA for issue tracking, showing how these skills apply in real-world software development environments.

University of Colorado Boulder
Skills you'll gain: Probability, Statistical Hypothesis Testing, Statistical Inference, Probability & Statistics, Statistical Methods, Probability Distribution, Statistics, Data Literacy, Sampling (Statistics), Applied Mathematics, Data Ethics, Data Analysis, Statistical Analysis, Quantitative Research, Data Science, Theoretical Computer Science, Sample Size Determination, Artificial Intelligence
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

Duke University
Skills you'll gain: C (Programming Language), Data Structures, Programming Principles, Algorithms, Computational Thinking, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Presentations, Google Sheets, Google Workspace, Productivity Software, Data Visualization
Beginner · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: Prompt Engineering, Anthropic Claude, Responsible AI, OpenAI API, Cloud Deployment, Cloud Applications, LLM Application, OpenAI, HTML and CSS, ChatGPT, Application Deployment, Mobile Development, API Gateway, Generative AI, Model Deployment, Cloud Security, Data Ethics, Application Programming Interface (API), Debugging, Artificial Intelligence
Intermediate · Specialization · 3 - 6 Months

The Linux Foundation
Skills you'll gain: Git (Version Control System), Version Control, Open Source Technology, Software Development Tools, Software Versioning, Development Environment, Linux
Beginner · Course · 1 - 4 Weeks

École Polytechnique
Skills you'll gain: Vibrations, Hydraulics, Environmental Engineering, Civil Engineering, Mechanical Engineering, Engineering, Mechanics, Chemical and Biomedical Engineering, Simulation and Simulation Software, Applied Mathematics, Biomedical Engineering, Mathematical Modeling
Intermediate · Course · 1 - 3 Months
Knowledge Accelerators
Skills you'll gain: Power BI, Data Import/Export, Business Intelligence, Data Transformation, Microsoft Power Platform, Data Visualization, Dashboard, Data Visualization Software, Data Presentation, Microsoft Excel, Interactive Data Visualization, Data Cleansing, Microsoft Teams, Business Analytics, Data Analysis, Management Reporting, Microsoft 365, Data Modeling, Microsoft Office, Data Science
Beginner · Course · 1 - 3 Months

The State University of New York
Skills you'll gain: Electrical Power, Basic Electrical Systems, Electric Power Systems, Wiring Diagram, Equipment Design, Energy and Utilities, Electronic Components, Sustainable Design, System Requirements, Electrical Safety, Engineering Calculations, Performance Testing, Physical Science, Estimation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Immunology, Infectious Diseases, Chronic Diseases, Physiology, Hematology, Pathology, Molecular Biology, Diagnostic Tests, Cell Biology, Biochemistry
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Desktop Support, End User Training and Support, Help Desk Support, Patient Communication, Health Informatics, Healthcare Industry Knowledge, Technical Support, Information Technology, Health Information Management, Issue Tracking, Electronic Medical Record, Medical Privacy
Beginner · Course · 1 - 4 Weeks

Tableau Learning Partner
Skills you'll gain: Tableau Software, Interactive Data Visualization, Data Visualization Software, Dashboard, Business Analytics, Business Intelligence, Data Preprocessing, Data Integration, Data Cleansing, Data Manipulation, Performance Tuning
Beginner · Course · 1 - 4 Weeks
University of California San Diego
Skills you'll gain: Collaborative Software, Telecommuting, Social Impact, Social Network Analysis, Remote Access Systems, Interaction Design, Driving engagement, Computing Platforms, Digital Communications
Mixed · Course · 1 - 4 Weeks