Free courses can help you learn coding languages like Python and JavaScript, data analysis techniques, and web development fundamentals. You can build skills in problem-solving, algorithm design, and creating interactive websites. Many courses introduce tools such as Git for version control, SQL for database management, and various frameworks that streamline web development, allowing you to apply your skills in practical projects.

Packt
Skills you'll gain: Go (Programming Language), Memory Management, Data Structures, System Programming, Other Programming Languages, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Continuous Delivery, Software Development Tools, Site Reliability Engineering, Incident Management, Memory Management, Incident Response, Performance Testing, Root Cause Analysis, CI/CD
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Vulnerability, Penetration Testing, Vulnerability Assessments, Vulnerability Scanning, Cyber Operations, Network Security, Distributed Denial-Of-Service (DDoS) Attacks, System Configuration, Data Security, Cybersecurity, Cyber Attacks, Linux, Bash (Scripting Language), Virtual Machines, Proxy Servers, Scripting, Linux Commands, Scripting Languages, Python Programming
Mixed · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: Amazon DynamoDB, Amazon Web Services, Amazon Redshift, Database Architecture and Administration, Transaction Processing, Data Migration, Amazon Elastic Compute Cloud, NoSQL, Relational Databases, Data Warehousing, Real Time Data, Scalability, Proxy Servers, Capacity Management
Intermediate · Course · 1 - 4 Weeks

KodeKloud
Skills you'll gain: Rust (Programming Language), Unit Testing, Development Testing, Continuous Integration, Network Protocols, TCP/IP, System Programming, C and C++, Integration Testing, Web Applications, Memory Management, Data Structures, Functional Design
Advanced · Course · 1 - 3 Months

Skills you'll gain: Java Programming, Object Oriented Design, Programming Principles, File I/O, Data Import/Export, Debugging, File Management, Memory Management
Beginner · Course · 3 - 6 Months

Skills you'll gain: Data Maintenance, Database Architecture and Administration, Database Management Systems, Memory Management
Advanced · Course · 1 - 3 Months

University of California, Santa Cruz
Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), Graph Theory, Object Oriented Design, C (Programming Language), Artificial Intelligence, Algorithms, Machine Learning Algorithms, Data Structures, Game Design, Memory Management, Simulations, Software Design, Verification And Validation
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Facebook, Persona Development, Customer Analysis, Target Audience, Social Media, Social Media Marketing, Target Market, Business Marketing, Social Media Content, Social Media Management, Marketing Strategies, Web Presence, Content Creation, Earned Media, Drive Engagement, Business Planning
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Object Oriented Design, Computer Programming, Code Reusability, Memory Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Object Oriented Programming (OOP), Java Programming, File I/O, Object Oriented Design, Java, Development Environment, Computer Programming, Programming Principles, Data Persistence, Integrated Development Environments, Memory Management, Debugging, File Management, Application Development, Data Structures
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Cloud API, Cloud Deployment, Application Programming Interface (API), Restful API, Google Cloud Platform, Cloud Applications, Web Services, Proxy Servers, Javascript, Data Store, Code Reusability
Beginner · Project · Less Than 2 Hours