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.

Skills you'll gain: Vulnerability Assessments, Distributed Denial-Of-Service (DDoS) Attacks, Vulnerability Scanning, Vulnerability Management, Cybersecurity, Malware Protection, Penetration Testing, Cyber Threat Intelligence, Exploitation techniques, Threat Management, Brute-force attacks, Network Security, Information Systems Security, Security Awareness, Human Factors (Security), Authentications, Network Protocols
★ 4.7 (10) · Intermediate · Course · 1 - 3 Months

The University of Edinburgh
Skills you'll gain: Pulmonology, Chronic Diseases, Respiratory Care, Primary Care, Pulmonary Function Testing, Respiration, Patient Evaluation, Rehabilitation, Psychosocial Assessments, Diagnostic Tests, Treatment Planning, Health Equity, Care Management, Patient Education and Support, Community Health, Patient-centered Care, Pharmacotherapy, Behavioral Health
★ 4.8 (9) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Relational Databases, Power BI, Microsoft Azure, Database Management, NoSQL, Dashboard, Cloud Deployment, Dashboard Creation, Data Integration, Data Visualization, Data Visualization Software, SQL, Database Management Systems, Data Storage, Data Modeling, Cloud Storage, Extract, Transform, Load, Data Processing, Infrastructure As A Service (IaaS), Platform As A Service (PaaS)
★ 4.7 (27) · Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: User Accounts, Real Time Data, Authentications, Frontend Integration, Cloud Applications, Cloud Development, Application Development, Single Sign-On (SSO), Security Controls, NoSQL, Serverless Computing, Identity and Access Management, Data Management, Data Storage, Cloud Security
★ 4.6 (7) · Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Probability, Bayesian Statistics, Probability Distribution, Failure Analysis, Probability & Statistics, Estimation, Mathematical Modeling, Statistical Inference, Statistical Modeling, Statistical Methods, Markov Model, Reliability, Simulations, Sampling (Statistics), Numerical Analysis, Applied Mathematics, Statistical Analysis, Simulation and Simulation Software
★ 5 (10) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Internet Of Things, Advanced Analytics, Analytics, Data-Driven Decision-Making, Data Processing, Robotics, Automation, Real Time Data, Network Security, Emerging Technologies, Security Strategy, Interoperability, Scalability
★ 4.6 (13) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Pipelines, Microsoft SQL Servers, Microsoft Azure, Database Development, Data Warehousing, SQL, Data Integration, Data Maintenance, Extract, Transform, Load
★ 4.2 (14) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Simulations, Plot (Graphics), Statistical Visualization, R (Software), R Programming, Statistical Programming, Statistical Methods, Process Modeling, Statistical Analysis, Process Analysis, Data Analysis
★ 5 (6) · Beginner · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: Personalized Campaigns, Public Relations, Content Creation, Marketing and Public Relations, Responsible AI, AI Personalization, Crisis Management, Prompt Engineering, Team Leadership
★ 3.9 (18) · Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Wireframing, Figma (Design Software), Collaborative Software, Prototyping, User Flows, User Interface (UI), UI Components, Information Architecture
★ 4.7 (19) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Text Mining, Data Processing, Microsoft Azure, Cloud Storage, Database Development, Data Storage, Data Storage Technologies, Unstructured Data, Application Development
★ 4.8 (23) · Beginner · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: User Story, Kanban Principles, Agile Methodology, Agile Project Management, Productivity Software, Organizational Skills, Project Management Software, Project Management
★ 4 (15) · Beginner · Guided Project · Less Than 2 Hours