Core Java courses can help you learn object-oriented programming, exception handling, multithreading, and Java Collections. You can build skills in writing efficient algorithms, debugging code, and developing user interfaces. Many courses introduce tools like Eclipse and IntelliJ IDEA, which are commonly used for coding and testing Java applications, along with frameworks such as Spring and Hibernate that facilitate web development and database management.

Skills you'll gain: JSON, Javascript, Ajax, JavaScript Frameworks, Web Development Tools, Software Testing, Frontend Performance, Event-Driven Programming, Hypertext Markup Language (HTML), Web Servers, Data Validation, Data Structures
Beginner · Course · 1 - 3 Months
Codio
Skills you'll gain: OAuth, Web Development Tools, Authentications, Web Servers, Application Programming Interface (API), Cloud API, Restful API, Server Side, JSON, Software Documentation, Javascript, Web Services, Application Security
Intermediate · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Responsible AI, Tensorflow, PyTorch (Machine Learning Library), Anomaly Detection, Model Deployment, Internet Of Things, Telecommunications, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Wireless Networks, Generative AI, Emerging Technologies, Generative AI Agents, Network Performance Management, Digital Communications, Network Architecture, Network Protocols, Computer Networking, Communication, System Design and Implementation
Advanced · Specialization · 1 - 3 Months

Indian Institute of Technology Guwahati
Skills you'll gain: User Experience Design, User Experience, Human Computer Interaction, User Centered Design, Usability, User Interface (UI), Interaction Design, Design, Design Research, User Research, Wireframing
Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Statistical Inference, Regression Analysis, R Programming, Statistical Analysis, Statistical Modeling, R (Software), Data Science, Logistic Regression, Data Analysis, Probability & Statistics, Linear Algebra
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Kubernetes, Docker (Software), Network Troubleshooting, Containerization, CI/CD, Application Deployment, Cloud Deployment, YAML, Scalability, Cloud Computing Architecture, Virtual Networking, Role-Based Access Control (RBAC), Network Monitoring, System Monitoring, Configuration Management, Debugging, Data Persistence
Intermediate · Course · 1 - 3 Months

Skills you'll gain: CrewAI, AI Orchestration, AI Workflows, Agentic Workflows, AI Enablement, Workflow Management, AI Product Strategy, Generative AI Agents, Productivity Software, Business Workflow Analysis, Business Process Automation, Automation, LLM Application, Agentic systems, Solution Design, Decision Making, Process Improvement, Performance Improvement
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, Scalability, Authentications, JSON, Authorization (Computing), Web Development Tools, Web Applications, Web Development, Server Side, Back-End Web Development, Application Frameworks, Javascript, Restful API, Development Environment, Operating Systems, Email Automation, Microsoft Visual Studio
Intermediate · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Time Series Analysis and Forecasting, R Programming, Statistical Analysis, Statistical Software, Forecasting, Statistical Modeling, Data Analysis, Statistical Methods, Statistical Visualization, Data Presentation, Probability & Statistics, Model Evaluation, Statistical Hypothesis Testing
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Creativity, Computer Graphic Techniques, Graphics Software, Peer Review, Digital Design, Creative Design, Color Theory
Mixed · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: AI Workflows, Technical Communication, AI Enablement, Model Deployment, Generative AI Agents, Data Integration, AI Orchestration, Reinforcement Learning, Artificial Intelligence and Machine Learning (AI/ML), Agentic systems, Responsible AI, Artificial Intelligence, Cloud Computing, Deep Learning, Data Visualization, Python Programming, Machine Learning, Data Engineering, Anomaly Detection, Statistical Analysis
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Unix Commands, Unix, Unix Shell, Remote Access Systems, Scripting, Systems Administration, Operating System Administration, Command-Line Interface, IT Automation, Linux, User Accounts, File Management, File Systems, Role-Based Access Control (RBAC), File Transfer Protocol (FTP)
Intermediate · Course · 1 - 4 Weeks