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 Illinois Urbana-Champaign
Skills you'll gain: Graph Theory, Data Structures, Unstructured Data, Algorithms
★ 4.7 (557) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Ggplot2, Data Visualization Software, Data Visualization, Statistical Visualization, Rmarkdown, Shiny (R Package), Plot (Graphics), Dashboard Creation, Dashboard, Leaflet (Software), Interactive Data Visualization, Data Presentation, R (Software), R Programming, Scatter Plots, Graphing, Box Plots, Geospatial Information and Technology, Data Science, Data Analysis
★ 4.6 (275) · Beginner · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Distributed Computing, File Systems, Cloud Computing, Dataflow, Transaction Processing, Computer Security, Data Centers, Cyber Security Policies, Authorization (Computing), Apache Hadoop, Data Store, Database Theory, Cloud Security, Authentications, NoSQL, Algorithms, Data Integrity, Encryption, File Management, Graph Theory
★ 4.5 (323) · Mixed · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Data Visualization, Business Analytics, Data Presentation, Analytics, Data Analysis, Big Data, Asset Management, Feasibility Studies, Business Modeling, Intellectual Property, Data Quality, Information Management, Network Model, Predictive Analytics, Data Strategy, Digital Assets, Data-Driven Decision-Making, Data Warehousing, Business Intelligence, Data Science
★ 4.6 (421) · Beginner · Specialization · 1 - 3 Months

LearnKartS
Skills you'll gain: Penetration Testing, Distributed Denial-Of-Service (DDoS) Attacks, MITRE ATT&CK Framework, Cryptography, Cyber Threat Intelligence, Cyber Threat Hunting, Cybersecurity, Cyber Security Assessment, Cyber Security Strategy, Computer Security, Threat Modeling, Security Testing, Secure Coding, Cyber Attacks, Cloud Infrastructure, Email Security, Security Controls, Security Awareness, Cyber Risk, Security Strategy
★ 4.6 (296) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Flutter (Software), Mobile Development, User Interface (UI) Design, User Interface and User Experience (UI/UX) Design, React Native, Application Development, iOS Development, Apple iOS, Mobile Development Tools, UI Components, User Story, User Interface (UI), Database Application, Android Development, Databases, Cloud Applications, Database Software, Other Mobile Programming Languages, Database Management, Database Management Systems
★ 4.5 (198) · Beginner · Specialization · 3 - 6 Months

Rice University
Skills you'll gain: Apache Kafka, Apache Spark, Apache Hadoop, Event-Driven Programming, Distributed Computing, Java Programming, Java, OS Process Management, Scala Programming, Servers
★ 4.6 (507) · Intermediate · Course · 1 - 3 Months

Stanford Online
Skills you'll gain: Model Deployment, Health Informatics, Model Evaluation, Clinical Data Management, Healthcare Ethics, Model Training, Responsible AI, Model Optimization, Artificial Intelligence and Machine Learning (AI/ML), Data Collection, Applied Machine Learning, Health Information Management, Health Care Procedure and Regulation, Data Ethics, Machine Learning Software, Machine Learning, Patient-centered Care, Artificial Intelligence, Fine-tuning, Performance Tuning
★ 4.7 (328) · Mixed · Course · 1 - 3 Months

University of Geneva
Skills you'll gain: Biochemistry, Biochemical Assays, Molecular Biology, Cell Biology, Chemistry, Biotechnology, Analytical Testing, Biological Engineering, Laboratory Research, Scientific Visualization, Biology, Specimen Labeling, Drug Development
★ 4.6 (174) · Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Stored Procedure, SQL, Data Presentation, Query Languages, Relational Databases, Database Development, Database Administration, Data Science
★ 4.5 (409) · Advanced · Guided Project · Less Than 2 Hours

University of Minnesota
Skills you'll gain: Health Informatics, Health Technology, Telehealth, Interoperability, Clinical Informatics, Informatics, Electronic Medical Record, Health Information Management, Community Health, Healthcare Ethics, Data Sharing, Dental Informatics, Public Health, Data Ethics, Data Visualization, Medical Terminology, Graph Theory
★ 4.4 (314) · Mixed · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Calculus, Applied Mathematics, Data Modeling, Model Optimization, Estimation, Graphing, Mathematical Modeling, Data Analysis Software, Algebra, Cost Estimation, Mathematical Software, Linear Algebra, Trigonometry, General Mathematics, Advanced Mathematics, Analysis, Derivatives, Mathematical Theory & Analysis, Geometry, Data Analysis
★ 4.8 (400) · Intermediate · Specialization · 3 - 6 Months