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 Pittsburgh
Skills you'll gain: Educational Materials, Web Content Accessibility Guidelines, Disabilities, Adaptive Equipment, Instructional Design, Differentiated Instruction, Education Software and Technology, Case Studies, Curriculum Development, Student Support and Services, Diversity Awareness, Higher Education
Mixed · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Responsive Web Design, HTML and CSS, Hypertext Markup Language (HTML), Typography, Cascading Style Sheets (CSS), Web Design, Web Design and Development, Web Development Tools, Browser Compatibility, Application Deployment, Front-End Web Development, Web Development, Animations, Development Environment, UI Components, Usability, Javascript, Frontend Performance, Maintainability, User Interface (UI)
Beginner · Specialization · 3 - 6 Months

ISC2
Skills you'll gain: Network Security, Cybersecurity, Cyber Attacks, Infrastructure Security, Threat Detection, Computer Networking, Data Centers, General Networking, Threat Management, Network Planning And Design, Firewall, Network Protocols, Cloud Computing, TCP/IP, Encryption
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Data Encryption Standard, Advanced Encryption Standard (AES), Cryptography, Encryption, Brute-force attacks, Algorithms
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Applied Machine Learning, Jupyter, Machine Learning Algorithms, Model Evaluation, Machine Learning, Predictive Modeling, Data Science, Python Programming, Predictive Analytics, Data Analysis, Technical Communication
Intermediate · Guided Project · Less Than 2 Hours

American Psychological Association
Skills you'll gain: Institutional Review Board (IRB), Data Visualization, Descriptive Statistics, Quantitative Research, Plot (Graphics), Data Literacy, Scientific Methods, Graphing, Research Design, Statistical Hypothesis Testing, Probability & Statistics, Research, Statistical Inference, Statistics, Statistical Analysis, Surveys, Sample Size Determination, Ethical Standards And Conduct, Data Analysis, Research and Design
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Canva (Software), Graphic and Visual Design, Graphic Design, Graphics Software, Graphical Tools, Animations, Content Creation, Social Media, Collaborative Software, Marketing
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Marketing Collateral, Marketing Materials, Canva (Software), Promotional Materials, Business Marketing, Marketing Design, Marketing, Business, Design, Graphic and Visual Design, Graphic Design, Color Matching, Design Elements And Principles
Advanced · Guided Project · Less Than 2 Hours

Skills you'll gain: Feature Engineering, Dimensionality Reduction, Data Integration, Data Preprocessing, Exploratory Data Analysis, Data Visualization, Plot (Graphics), Matlab, Data Processing, Data Cleansing, Data Manipulation, Text Mining, Predictive Modeling, Unstructured Data, Image Analysis, Natural Language Processing
Intermediate · Course · 1 - 3 Months

Salesforce
Skills you'll gain: Sales Pipelines, Sales Process, Sales Operations, Order Management, Sales Management, Sales Support, Closing (Sales), Salesforce, Request For Quotation (RFQ), Product Knowledge, Contract Management, Collaborative Software, Kanban Principles
Beginner · Course · 1 - 4 Weeks

28DIGITAL
Skills you'll gain: Digital Transformation, Case Studies, Business Modeling, Petroleum Industry, Business Technologies, Production Management, Manufacturing Processes, Innovation, Process Optimization, Predictive Modeling
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Identity and Access Management, Cloud Security, OAuth, Google Cloud Platform, Kubernetes, Cloud Storage, Security Controls, Data Storage Technologies, Application Security, Authorization (Computing), Data Security, Role-Based Access Control (RBAC), Hardening, Encryption, Key Management, Virtual Machines
Intermediate · Course · 1 - 3 Months