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.

Osmosis
Skills you'll gain: Infectious Diseases, Infection Control, Public Health, Public Health and Disease Prevention, Epidemiology, Diagnostic Tests, Health Education, Health Care, Personal protective equipment, Patient Evaluation, Maternal Health, Clinical Practices, Community Health, Clinical Assessment, Laboratory Testing
★ 4.8 (7K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: File I/O, Object Oriented Programming (OOP), Object Oriented Design, Unit Testing, Test Case, Software Design, Test Tools, Computer Programming, Package and Software Management, Code Reusability, Python Programming, Maintainability, Functional Design
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Prompt Engineering, AI Integrations, Full-Stack Web Development, Vibe coding, OpenAI API, AI Product Strategy, Debugging, AI Workflows, Back-End Web Development, Web Applications, Application Deployment, Application Development, Frontend Integration, Webhook Security, OAuth, Restful API, Web Development, Software Testing, Git (Version Control System), Database Management
Intermediate · Course · 1 - 3 Months

Princeton University
Skills you'll gain: Graph Theory, Data Structures, Algorithms, Theoretical Computer Science, Computer Programming, Java Programming, Java
★ 4.9 (2.1K) · Intermediate · Course · 3 - 6 Months
University of Toronto
Skills you'll gain: Bioinformatics, Network Analysis, Laboratory Reports, Molecular Biology, Research Reports, Molecular, Cellular, and Microbiology, Biology, R (Software), Informatics, Correlation Analysis, Data Visualization Software, Biotechnology, Scientific Visualization, Network Model, Data Analysis Software, Data Synthesis, Life Sciences, Data Analysis, Microbiology, Analysis
★ 4.7 (2.2K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Email Security, Cybersecurity, Hardening, Authorization (Computing), Cyber Attacks, Security Awareness, Security Controls, Threat Management, Encryption, Data Security, Identity and Access Management, Authentications, Application Security, Endpoint Security, Threat Detection, Cryptography, Malware Protection, Patch Management, Multi-Factor Authentication
★ 4.9 (2K) · Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: DevSecOps, Threat Modeling, IT Security Architecture, Application Security, AI Security, Security Architecture Review, AI Integrations, DevOps, Security Engineering, Security Requirements Analysis, Infrastructure as Code (IaC), Kubernetes, CI/CD, Security Controls, Cloud-Native Computing, AI Workflows, Open Web Application Security Project (OWASP), Security Testing, GitHub, Compliance Reporting
Advanced · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Hardware Troubleshooting, Microsoft Azure, Generative AI, Operating Systems, Authorization (Computing), Load Balancing, Collaborative Software, Hardware Architecture, Cloud Services, Cloud Solutions, Computer Networking, Microsoft Power Automate/Flow, General Networking, Microsoft Teams, Authentications, Dashboard Creation, Cloud Computing, IT Automation, Security Controls, Network Protocols
★ 4.7 (1.7K) · Beginner · Professional Certificate · 3 - 6 Months

LearnQuest
Skills you'll gain: Java, Java Programming, Programming Principles, Data Structures, Software Installation, Computer Programming, Object Oriented Programming (OOP), Computational Logic, Development Environment
★ 4.6 (2.3K) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Model Evaluation, Predictive Modeling, Machine Learning Algorithms, Model Training, Machine Learning Methods, Feature Engineering, Supervised Learning, Machine Learning Software, Classification And Regression Tree (CART), Predictive Analytics, Applied Machine Learning, Data Preprocessing, R Programming, Classification Algorithms, Machine Learning, Random Forest Algorithm, Regression Analysis
★ 4.5 (3.3K) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Bootstrap (Front-End Framework), Debugging, UI Components, Web Development Tools, Front-End Web Development, Web Design and Development, Web Design, Semantic Web, Hypertext Markup Language (HTML), Browser Compatibility, Frontend Performance, Web Development, Web Content Accessibility Guidelines, Web Analytics and SEO, User Interface (UI), Software Engineering Tools, Javascript
★ 4.7 (1.9K) · Beginner · Course · 1 - 4 Weeks

Rutgers the State University of New Jersey
Skills you'll gain: Strategic Sourcing, Supplier Management, Supply Management, Supplier Relationship Management, Supplier Performance Management, Negotiation, Supplier Quality Management, Vendor Management, Contract Negotiation, Request For Quotation (RFQ), Vendor Relationship Management, Price Negotiation, Procurement, Case Studies, Stakeholder Management, Contract Management, Market Analysis, Supplier Risk Management, Purchasing, Request for Proposal
★ 4.7 (2.7K) · Beginner · Specialization · 3 - 6 Months