Language courses can help you learn grammar, vocabulary development, pronunciation techniques, and conversational skills. You can build skills in writing clearly, understanding cultural nuances, and using language for specific purposes like business or travel. Many courses introduce tools such as language learning apps, online dictionaries, and pronunciation software, which enhance your ability to practice and apply what you've learned in everyday situations.

EDUCBA
Skills you'll gain: Microservices, Spring Framework, Spring Boot, YAML, MongoDB, Application Deployment, NoSQL, Ajax, Software Architecture, Java Programming, Frontend Integration, Java, Development Environment, Scalability, Load Balancing, Data Integration, Configuration Management, File I/O, File Management
Mixed · Course · 1 - 3 Months

Fractal Analytics
Skills you'll gain: Model Evaluation, Model Training, Generative AI, Data Preprocessing, Model Optimization, Fine-tuning, PyTorch (Machine Learning Library), Machine Learning, Image Quality
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), HTML and CSS, Web Applications, Web Design and Development, Javascript, Frontend Integration, Web Design, Web Development, Front-End Web Development, Game Design, Program Development
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Jest (JavaScript Testing Framework), React.js, React Redux, Cloud Deployment, Application Deployment, Software Testing, Web Development, JavaScript Frameworks, Code Reusability, Software Architecture, Full-Stack Web Development, Context Management, Front-End Web Development, Real Time Data, Frontend Integration, Application Programming Interface (API), Event-Driven Programming, Cascading Style Sheets (CSS), Frontend Performance, Development Environment
Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Embedded Software, Real-Time Operating Systems, Embedded Systems, Software Architecture, Code Reusability, Pseudocode, Microarchitecture, Memory Management, Systems Architecture, Computer Hardware, System Programming, Computer Architecture, Software Design, Cross Platform Development, Software Systems, Hardware Architecture, Systems Design, Software Design Patterns, Internet Of Things, Hardware Troubleshooting
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Ubuntu, Linux, Linux Administration, Bash (Scripting Language), Linux Commands, Operating System Administration, Unix Shell, File Management, Unix Commands, Shell Script, Command-Line Interface, File Systems, grep, Software Installation, System Configuration, File I/O
Intermediate · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Secure Coding, C and C++, Application Security, System Programming, C++ (Programming Language), C (Programming Language), Security Engineering, Interoperability, Unix, Embedded Software, Information Systems Security, OS Process Management, Embedded Systems, Operating Systems, Data Security, Memory Management, Authorization (Computing), Linux
Mixed · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Object Oriented Programming (OOP), Programming Principles, Computational Thinking, Code Reusability, Python Programming, Computer Programming, Development Environment, Computational Logic, Integrated Development Environments, System Software, Software Installation, Functional Design
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: LangChain, Generative AI Agents, Development Environment, Agentic systems, Artificial Intelligence, Agentic Workflows, Database Development, Tool Calling, LLM Application, Database Management, SQL, Database Application, OpenAI API
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Object Oriented Design, JUnit, Object Oriented Programming (OOP), Software Design Patterns, Software Engineering, Java, Unified Modeling Language, Software Design, Java Programming, Software Architecture, Model View Controller, Conceptual Design
Build toward a degree
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: API Gateway, Application Programming Interface (API), Capacity Management, Kubernetes, Istio, Google Cloud Platform, Scalability, Hybrid Cloud Computing, Security Controls, Apache Cassandra, Proxy Servers, Data Security, Cloud Deployment, Application Deployment, Role-Based Access Control (RBAC), Development Environment, Public Key Infrastructure, Encryption, YAML, Debugging
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Bayesian Network, Numerical Analysis, Markov Model, Estimation, Simulations, Integral Calculus, Matlab, Mathematical Modeling, Applied Mathematics, Engineering Analysis, Algorithms
Intermediate · Course · 1 - 4 Weeks