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.

Scrimba
Skills you'll gain: Prompt Engineering, LangChain, LLM Application, Memory Management, AI Workflows, Vector Databases, Scalability, User Interface (UI), Embeddings, Database Application, Data Store, Retrieval-Augmented Generation, Databases, Large Language Modeling, Performance Tuning, Maintainability, Data Storage, Data Preprocessing
★ 4.7 (54) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: ASP.NET, Object Oriented Programming (OOP), Object Oriented Design, Web Design and Development, Application Frameworks, Frontend Integration, Programming Principles, API Design, Middleware, Back-End Web Development, Object-Relational Mapping, Model View Controller, Event-Driven Programming, User Interface (UI), Cascading Style Sheets (CSS), Maintainability, Code Reusability
★ 4.2 (49) · Beginner · Specialization · 1 - 3 Months

STARWEAVER
Skills you'll gain: Data Storytelling, Active Listening, Business Writing, Data Visualization, Concision, Data Presentation, Non-Verbal Communication, Sales Strategy, Sales Presentations, Customer Relationship Management (CRM) Software, Writing, Persuasive Communication, Team Collaboration, Virtual Teams, HubSpot CRM, Business Communication, Technical Communication, Communication, Marketing Communications, Communication Strategies
★ 4.4 (43) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Containerization, Kubernetes, Microservices, Ubuntu, DevOps, Application Deployment, Virtualization, Software Installation, Virtual Machines, Scalability, Systems Architecture, Software Architecture, Data Persistence
★ 4.2 (42) · Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Hugging Face, Model Deployment, Open Source Technology, LLM Application, AI Integrations, Responsible AI, Generative AI, Application Frameworks, Web Applications
★ 4.7 (37) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Feature Engineering, Model Evaluation, Predictive Modeling, Model Deployment, Model Training, Predictive Analytics, R (Software), R Programming, Data Analysis, Statistical Analysis, Data Wrangling, Data Cleansing, Data Manipulation, Classification Algorithms, Data Import/Export, Data Preprocessing, Machine Learning
★ 4.5 (33) · Intermediate · Guided Project · Less Than 2 Hours

Berklee
Skills you'll gain: Musical Composition, Post-Production, Music, Media Production, Video Editing, Music Performance, Editing, Automation, Electronic Media
★ 4.6 (16) · Intermediate · Course · 1 - 4 Weeks

MathWorks
Skills you'll gain: Computer Vision, Model Evaluation, Image Analysis, Model Training, Matlab, Machine Learning Methods, Data Preprocessing, Model Optimization, Machine Learning, Classification Algorithms, Machine Learning Algorithms
★ 4.8 (23) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Security Software, Software Installation, SQL, Virtual Machines, Data Structures
★ 4.7 (25) · Intermediate · Specialization · 3 - 6 Months

Illinois Tech
Skills you'll gain: Game Theory, Market Dynamics, Business Economics, Strategic Decision-Making, Strategic Thinking, Business Strategy, Supply And Demand, Revenue Management, Economics, Customer Analysis, Market Analysis, Competitive Analysis, Consumer Behaviour, Profit and Loss (P&L) Management, Policy Analysis
★ 4.5 (51) · Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Software Design, Systems Design, Software Design Documents, Software Documentation, System Design and Implementation, Internet Of Things, Technical Documentation, Technical Communication, Technical Writing, Mobile Development, Test Case, Development Testing, System Testing, Software Development, Embedded Software, Communication Systems, Embedded Systems, Systems Integration, Prototyping, System Implementation
★ 4.8 (13) · Mixed · Course · 1 - 4 Weeks

Alfaisal University | KLD
Skills you'll gain: Data Entry, Microsoft Office, Spreadsheet Software
★ 4.8 (60) · Beginner · Course · 1 - 4 Weeks