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 Colorado Boulder
Skills you'll gain: Field-Programmable Gate Array (FPGA), Hardware Design, Laboratory Experience, Laboratory Reports, Embedded Software, Electronic Hardware, Electrical and Computer Engineering, Electronics Engineering, Laboratory Testing, Engineering Documentation, Electronic Systems, Debugging, System Design and Implementation, Program Development, Software Design, Software Development, Functional Design, Simulation and Simulation Software, Development Environment, Eclipse (Software)
★ 4.3 (27) · Intermediate · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Digital Transformation, Predictive Modeling, Customer experience strategy (CX), Analytics, Predictive Analytics, Simulations, Simulation and Simulation Software, Advanced Analytics, Business Transformation, Scikit Learn (Machine Learning Library), Model Evaluation, Data-Driven Decision-Making, Operations Research, Internet Of Things, Model Training, Ethical Standards And Conduct, Cloud Computing, Data Ethics, Business Analytics, Process Optimization
★ 4.8 (36) · Intermediate · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: Cyber Security Assessment, Security Testing, Cybersecurity, Vulnerability Scanning, Cyber Operations, Cyber Threat Intelligence, Cyber Threat Hunting, Scenario Testing, Cyber Security Strategy, Exploitation techniques, Cyber Attacks, Problem Solving, Simulations
★ 4.7 (66) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Education Software and Technology, Mathematics Education
★ 4.7 (88) · Beginner · Guided Project · Less Than 2 Hours

Infosec
Skills you'll gain: NIST 800-53, Security Controls, Security Requirements Analysis, Continuous Monitoring, Cyber Security Policies, Information Assurance, Information Systems Security, Cyber Security Assessment, Personally Identifiable Information, Data Security, Multi-Factor Authentication, Computer Security Awareness Training, Document Management, System Monitoring, Identity and Access Management, Authentications, Cryptography, Encryption
★ 4.6 (55) · Mixed · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Software Design Documents, Data Flow Diagrams (DFDs), User Requirements Documents, Functional Requirement, Software Documentation, Diagram Design, Unified Modeling Language, Functional Specification, Requirements Analysis, System Requirements, Technical Documentation, Data Modeling, Systems Analysis, Security Requirements Analysis, Process Modeling, Computational Logic
★ 4.3 (59) · Beginner · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Hypertext Markup Language (HTML)
★ 4.4 (47) · Intermediate · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: AI Orchestration, Agentic Workflows, Generative AI Agents, Agentic systems, LLM Application, Tool Calling, Software Design Patterns
★ 4.5 (53) · Beginner · Project · Less Than 2 Hours

Skills you'll gain: Public Key Infrastructure, Encryption, Cryptography, Cybersecurity, Data Security, Cryptographic Protocols, Advanced Encryption Standard (AES), Key Management, Data Encryption Standard, Blockchain, Algorithms, Authentications, Data Integrity
★ 4.9 (51) · Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Code Reusability, Data Manipulation, Functional Design, Data Science, Python Programming, Programming Principles, Computer Programming, Software Engineering
★ 4.8 (58) · Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Google Gemini, Gemini, Google Workspace, Generative AI, Google Cloud Platform, Productivity Software, Prompt Engineering, Workflow Management, Large Language Modeling, Enterprise Security
★ 5 (125) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Analysis Expressions (DAX), Power BI, Data Modeling, Interactive Data Visualization, Azure Synapse Analytics, Database Design, Enterprise Architecture, Business Reporting, Microsoft Azure, Business Intelligence, Enterprise Security, Data Lakes, Data Governance, Solution Architecture, Data Management, Performance Analysis, Analytics, Governance, Regulation and Legal Compliance, Automation
★ 2.8 (13) · Intermediate · Professional Certificate · 3 - 6 Months