Pen testing courses can help you learn vulnerability assessment, network security, and ethical hacking techniques. You can build skills in penetration testing methodologies, risk analysis, and incident response strategies. Many courses introduce tools like Metasploit, Wireshark, and Burp Suite, that support identifying and exploiting security weaknesses in systems and applications. By engaging with these tools, you can practice practical work that enhance your ability to secure networks and protect sensitive data.

LearnKartS
Skills you'll gain: Computer Security Incident Management, Vulnerability Management, Cyber Security Strategy, Cyber Governance, Incident Response, Cyber Operations, Cyber Threat Intelligence, Encryption, Cyber Attacks, Governance Risk Management and Compliance, Incident Management, Cryptographic Protocols, Threat Detection, Security Strategy, Mobile Security, Network Model, Vulnerability, Security Awareness, Vulnerability Assessments, Vulnerability Scanning
★ 4.7 (52) · Beginner · Specialization · 1 - 3 Months
Universidad Austral
Skills you'll gain: Mobile Development, Cross Platform Development, React Redux, iOS Development, Continuous Integration, Apple iOS, Test Automation, Unit Testing, Data Persistence, User Interface (UI), Development Testing, CI/CD, Angular, UI Components, User Interface (UI) Design, TypeScript, Animations
★ 3.7 (23) · Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Database Design, Software Design, User Experience Design, Database Theory, Usability, UI/UX Research, Usability Testing, User Interface and User Experience (UI/UX) Design, Relational Databases, Software Visualization, Software Architecture, Software Design Patterns, User Interface (UI) Design, Application Security, Design Strategies, Security Software, Servers, Operating Systems
★ 4.7 (135) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: User Research, UI/UX Research, User Interface and User Experience (UI/UX) Design, User Interface (UI), User Experience, UI/UX Strategy, Persona (User Experience), User Centered Design, Usability, User Flows, User Interface (UI) Design, Responsive Web Design, Graphic and Visual Design, Interactive Design, Interaction Design, Layout Design, Design Elements And Principles, Typography, Prototyping
★ 4.1 (14) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Statistical Inference, Statistical Modeling, Regression Analysis, Data Ethics, Statistical Methods, Statistical Hypothesis Testing, Data Science, R Programming, Statistical Programming, Statistical Analysis, Predictive Modeling, Predictive Analytics, Probability & Statistics, Correlation Analysis, Model Evaluation, Plot (Graphics)
★ 4.3 (37) · Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: White-Box Testing, Performance Testing, Maintainability, Test Tools, Software Testing, Code Review, Test Automation, Software Technical Review, Test Planning, Scripting, Risk Analysis, Performance Stress Testing, Software Quality Assurance, Application Security, Test Script Development, Continuous Integration, Code Coverage, Test Case, Quality Assurance, Security Testing
★ 3.8 (14) · Advanced · Specialization · 1 - 3 Months

Skills you'll gain: Fine-tuning, Large Language Modeling, Natural Language Processing, LLM Application, Generative AI Agents, Agentic Workflows, Decision Intelligence, Test Case, Agentic systems, User Interface (UI), Performance Testing, Model Training, Applied Machine Learning, Artificial Intelligence, Model Optimization, Machine Learning Algorithms, Classification Algorithms, Decision Support Systems, Model Evaluation
★ 4.3 (17) · Intermediate · Course · 1 - 3 Months

Edureka
Skills you'll gain: API Design, Application Programming Interface (API), Postman API Platform, Restful API, API Testing, Application Deployment, Continuous Deployment, CI/CD, Application Lifecycle Management, Test Automation, Software Documentation, Application Performance Management, Continuous Integration
★ 3.5 (11) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Unit Testing, Test Case, Application Deployment, Responsive Web Design, Continuous Deployment, Maintainability, LinkedIn, Cascading Style Sheets (CSS), Front-End Web Development, Software Testing, Test Script Development, HTML and CSS, Development Testing, Hypertext Markup Language (HTML), Interviewing Skills, Web Development Tools, Debugging, Web Development, Application Development, Software Documentation
★ 4.6 (21) · Intermediate · Specialization · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Intellectual Property, Healthcare Industry Knowledge, Pharmaceuticals, Health Care Procedure and Regulation, Regulation and Legal Compliance, Health Care, Legal Strategy, Health Policy, Medical Science and Research, Economics, Policy, and Social Studies, Research, Case Studies, Economics, Market Dynamics
★ 4.8 (148) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Systems Development Life Cycle, Software Development Life Cycle, z/OS, COBOL (Programming Language), Unit Testing, Systems Analysis, Systems Development, Pseudocode, Program Development, Software Development Methodologies, Agile Methodology, Software Development, Software Design, Agile Software Development, Systems Architecture, Mainframe Computing, Scrum (Software Development), Test Planning, Mainframe Technologies, Software Testing
★ 4.2 (71) · Beginner · Course · 1 - 3 Months

L&T EduTech
Skills you'll gain: Construction, Construction Engineering, Structural Engineering, Construction Inspection, Acceptance Testing, Building Codes, Process Validation, Engineering Practices, Construction Estimating, Civil Engineering, Finite Element Methods, Design Specifications, Engineering Design Process, Structural Analysis, Simulation and Simulation Software, Engineering Analysis, Safety Standards, Design
★ 4.8 (33) · Advanced · Specialization · 3 - 6 Months