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.

Coursera
Skills you'll gain: No-Code Development, User Centered Design, Mobile Development, Web Applications, User Interface (UI) Design, Experience Design, UI/UX Research, User Feedback, Functional Testing, Integration Testing, Root Cause Analysis
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Secure Coding, API Testing, Application Programming Interface (API), Security Testing, Open Web Application Security Project (OWASP), Penetration Testing, Application Security, Restful API, Authentications, Personally Identifiable Information, Brute-force attacks, Security Engineering, Threat Modeling, Distributed Denial-Of-Service (DDoS) Attacks, Vulnerability Assessments, Exploitation techniques, Data Security, Business Logic, Authorization (Computing), Cybersecurity
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Performance Testing, Salesforce Development, Salesforce, Performance Tuning, Performance Analysis, Application Performance Management, Software Testing, UI Components, Query Languages, Continuous Integration, DevOps, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Statistical Hypothesis Testing, A/B Testing, Data-Driven Decision-Making, Customer Analysis, Statistical Methods, Market Research, Statistical Analysis, Business Analytics, Probability & Statistics, Statistical Inference, Data Analysis, Descriptive Statistics, Microsoft Excel, Data Analysis Software, Spreadsheet Software
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Continuous Deployment, System Monitoring, API Testing, Restful API, Site Reliability Engineering, Machine Learning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Test Script Development, Test Automation, Automation, Software Testing, Java, Test Data, Web Scraping, Software Design Patterns, Maintainability, Debugging, Data Validation
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: IntelliJ IDEA, Apache Maven, Integrated Development Environments, Version Control, Unit Testing, Eclipse (Software), Development Environment, Software Development Tools, Debugging, Git (Version Control System), Java, Application Development, Node.JS
Intermediate · Course · 1 - 3 Months

Skills you'll gain: iOS Development, Apple iOS, Swift Programming, Apple Xcode, Unit Testing, Mobile Development, User Interface (UI), User Interface and User Experience (UI/UX) Design, Game Design, Application Deployment, Real Time Data, Debugging, Artificial Intelligence
Intermediate · Course · 1 - 3 Months

Pontificia Universidad Católica de Chile
Skills you'll gain: Basic Electrical Systems, Electronics, Electronic Systems, Electrical Engineering, Electronic Components, Control Systems, Hardware Design, Embedded Systems, Programming Principles, Computer Programming
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Microservices, Redis, API Design, Docker (Software), .NET Framework, Software Architecture, Software Design Patterns, Restful API, Integration Testing, Distributed Computing, PostgreSQL, Data Validation
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: User Feedback, Functional Testing, Root Cause Analysis, UI/UX Research, Experience Design, User Experience, Problem Management, User Interface (UI) Design, Integration Testing, Application Development, Network Troubleshooting, Investigation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microservices, Docker (Software), Containerization, API Gateway, Redis, API Design, ASP.NET, .NET Framework, Software Architecture, Microsoft Visual Studio, Software Design Patterns, Cloud-Native Computing, Restful API, C# (Programming Language), Web Services, Application Programming Interface (API), Event-Driven Programming, Integration Testing, Software Development, Web Development
Intermediate · Specialization · 3 - 6 Months