Web application courses can help you learn front-end and back-end development, user interface design, and database management. You can build skills in coding languages like JavaScript and Python, as well as frameworks such as React and Node.js. Many courses also cover essential tools like Git for version control and SQL for database queries, showing how these skills come together to create dynamic and interactive web experiences.

Scrimba
Skills you'll gain: React.js, Routing Protocols, Code Reusability, JavaScript Frameworks, Frontend Performance, Web Content Accessibility Guidelines, UI Components, Debugging, Javascript, Context Management, Authentications, Data Management
★ 4.8 (35) · Advanced · Course · 1 - 3 Months

Institut Mines-Télécom
Skills you'll gain: Wireless Networks, Network Architecture, Software-Defined Networking, Network Planning And Design, Virtual Networking, Network Security, Service Oriented Architecture, Emerging Technologies, Network Protocols, Telecommunications, Mobile Security, Interoperability, Digital Communications, Authentications, Encryption, Authorization (Computing)
★ 4.6 (119) · Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Microservices, Spring Boot, Software Architecture, API Gateway, Spring Framework, Cloud-Native Computing, Service Oriented Architecture, Load Balancing, Cloud Computing, Software Design Patterns, Scalability, Restful API, Service Management, Network Routing
★ 4.3 (76) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Systems Development Life Cycle, Software Quality Assurance, Software Development Life Cycle, Quality Assurance, Software Quality (SQA/SQC), Software Documentation, Functional Testing, Software Testing, Software Development Methodologies, Acceptance Testing, User Acceptance Testing (UAT), Test Case, Maintainability, Test Planning, Unit Testing, Software Design, Technical Documentation, Agile Methodology
★ 4 (34) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), File I/O, Data Persistence, Object Oriented Design, Java, Java Programming, Code Reusability, Maintainability, Software Design, Application Development, Computer Programming, Data Import/Export, Data Management, Data Validation
★ 4.3 (23) · Intermediate · Course · 1 - 4 Weeks

EC-Council
Skills you'll gain: Cryptography, Encryption, Systems Development Life Cycle, Human Factors (Security), Threat Management, Systems Development, Security Management, Security Awareness, Cybersecurity, Cyber Attacks, Computer Security Awareness Training, Cyber Security Policies, Threat Detection, ISO/IEC 27001, Data Security, Security Controls, Network Security, Risk Management Framework, Cyber Risk, General Data Protection Regulation (GDPR)
★ 4.9 (40) · Beginner · Course · 1 - 3 Months

Knowledge Accelerators
Skills you'll gain: AI literacy, Productivity, LLM Application, Generative AI, AI Workflows, Microsoft Windows, Business Communication
★ 4.4 (22) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Model Context Protocol, Responsible AI, LangGraph, AI Integrations, AI Workflows, AI Orchestration, Agentic Workflows, LangChain, Generative AI Agents, CrewAI, OpenAI API, Agentic systems, LLM Application, Tool Calling, Case Studies, OpenAI, Governance, Compliance Management, Model Deployment, AI Security
★ 2.5 (30) · Intermediate · Specialization · 3 - 6 Months

University of California, Irvine
Skills you'll gain: Extract, Transform, Load, Decision Support Systems, Data Warehousing, Data Mining, Database Design, Business Intelligence, Dashboard Creation, Dashboard, Star Schema, Relational Databases, Database Management, Database Theory, Data Visualization Software, Snowflake Schema, Data Presentation, Database Systems, Database Development, Data Visualization, Business Reporting, Database Management Systems
★ 4.4 (243) · Beginner · Specialization · 1 - 3 Months

The State University of New York
Skills you'll gain: Persuasive Communication, Emergency Response, Conflict Management, Mediation, Leadership, Clinical Leadership, Mitigation, Interviewing Skills, Safety and Security, Intercultural Competence, Health Disparities, De-escalation Techniques, Hazard Communication (HazCom), Cultural Sensitivity, Risk Management, Communication, Social Determinants Of Health, Cultural Diversity, Community Health, Public Health
★ 4.7 (298) · Beginner · Specialization · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Data Storytelling, Business Analytics, Data Visualization Software, Analytical Skills, Exploratory Data Analysis, Data Quality, Data Analysis, Data-Driven Decision-Making, Extract, Transform, Load, Analytics, Data Manipulation, Descriptive Statistics, Data Processing, SQL, Python Programming, Application Programming Interface (API)
★ 4.8 (58) · Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Prompt Engineering, Prompt Patterns, Responsible AI, AI Integrations, OpenAI API, OpenAI, Generative AI, API Testing, Data Ethics, AI Security, Artificial Intelligence, Artificial Intelligence and Machine Learning (AI/ML), Application Programming Interface (API), Fine-tuning, Computer Programming, Key Management
★ 4.5 (161) · Intermediate · Course · 1 - 3 Months