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.

LearnQuest
Skills you'll gain: Spring Framework, JUnit, Application Frameworks, Unit Testing, Java Programming, Enterprise Application Management, Integration Testing, Configuration Management, Development Environment, Extensible Markup Language (XML), Context Management
★ 3.8 (456) · Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: UI/UX Research, Qualitative Research, User Research, Design Research, User Experience, User Experience Design, Research Methodologies, Usability, Needs Assessment, Research and Design, Interviewing Skills, Research, Human Computer Interaction, Data Collection
★ 4.7 (552) · Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: SQL, Microsoft SQL Servers, Relational Databases, Transact-SQL, Data Transformation, Database Theory, Data Manipulation, Databases, Query Languages, Database Development, Database Software, Database Management, Data Access, Database Design, Data Wrangling, GitHub Copilot, Generative AI Agents, Data Presentation, Maintainability
★ 4.6 (273) · Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Core Data (Software), iOS Development, Model View Controller, Apple iOS, JSON, Swift Programming, Apple Xcode, Code Review, UI Components, Object Oriented Design, Object Oriented Programming (OOP), Unit Testing, Data Structures, Data Persistence, User Interface (UI), User Interface (UI) Design, Data Store, Application Development, Transaction Processing, Mobile Development
★ 4.4 (913) · Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Data Encryption Standard, Public Key Infrastructure, Cryptography, Brute-force attacks, Key Management, Advanced Encryption Standard (AES), Cryptographic Protocols, Encryption, Data Integrity, Cybersecurity, Computer Security, Information Assurance, Authentications, Data Security, Theoretical Computer Science, Threat Modeling, Communication Systems, Algorithms, Digital Communications
★ 4.6 (923) · Intermediate · Specialization · 3 - 6 Months

DeepLearning.AI
Skills you'll gain: Computer Vision, Tensorflow, Image Analysis, Transfer Learning, Convolutional Neural Networks, Fine-tuning, Applied Machine Learning, Model Training, Deep Learning, Model Optimization, Classification Algorithms, Model Evaluation, Visualization (Computer Graphics)
★ 4.7 (535) · Intermediate · Course · 1 - 4 Weeks

Epic Games
Skills you'll gain: Game Design, Video Game Development, Software Design Documents, Ideation, Interactive Design, Conceptual Design, Software Development Methodologies, Creativity, Collaborative Software
★ 4.4 (539) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Innovation, Product Management, Drive Engagement, Product Marketing, Product Development, Stakeholder Engagement, Competitive Analysis, Product Planning, Communication Planning, Product Strategy, Business Strategy, Business Development, Product Lifecycle Management, Ideation, Market Analysis, Product Knowledge, Communication, Stakeholder Management, Media and Communications, Leadership
★ 4.6 (387) · Beginner · Course · 1 - 3 Months

Infosec
Skills you'll gain: MITRE ATT&CK Framework, Threat Detection, Cybersecurity, Network Security, Cyber Security Strategy, System Monitoring, Cyber Operations, Threat Management, Continuous Monitoring, Exploitation techniques, Penetration Testing, Cyber Attacks, Data Persistence, Scripting, IT Automation, Network Monitoring, Persistence, Python Programming, Data Access, Computer Programming
★ 4.5 (560) · Intermediate · Specialization · 3 - 6 Months

DeepLearning.AI
Skills you'll gain: Retrieval-Augmented Generation, LLM Application, Large Language Modeling, Prompt Engineering, Vector Databases, Embeddings, System Monitoring, Application Security, Fine-tuning, Artificial Intelligence, Model Evaluation
★ 4.8 (217) · Intermediate · Course · 1 - 3 Months
University of Toronto
Skills you'll gain: Geographic Information Systems, Geospatial Information and Technology, Geospatial Mapping, GIS Software, Data Mapping, Spatial Data Analysis, Metadata Management, Quantitative Research, Data Literacy, Spatial Analysis, Typography, Data Cleansing, Data Manipulation, Graphic and Visual Design, Design Elements And Principles, Data Import/Export, File Management
★ 4.9 (728) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Linux Commands, Linux, Linux Servers, Command-Line Interface, Linux Administration, File Management, Unix, grep
★ 4.6 (990) · Beginner · Guided Project · Less Than 2 Hours