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.

Skills you'll gain: Mainframe Computing, Mainframe Technologies, z/OS, Virtualization, Virtualization and Virtual Machines, Virtual Machines, Hardware Architecture, Infrastructure Architecture, Computing Platforms, Computer Architecture, Enterprise Security, Computer Hardware, Cryptography, Transaction Processing, System Configuration, Authorization (Computing), Identity and Access Management, Memory Management
★ 4.7 (1.1K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: API Gateway, Restful API, API Design, Application Programming Interface (API), Cloud API, Google Cloud Platform, Application Lifecycle Management, Proxy Servers, Software Documentation, Application Development, Enterprise Architecture, Development Environment, Application Deployment, Authorization (Computing), Authentications, Debugging
★ 4.7 (2.4K) · Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: R (Software), Tidyverse (R Package), Web Scraping, Data Manipulation, Data Wrangling, R Programming, Data Transformation, Memory Management, Data Cleansing, Data Science, Statistical Programming, Data Integration, Data Processing, Text Mining, Data Import/Export, Data Analysis, Web Services, Data Structures, Application Programming Interface (API)
★ 4.3 (1.2K) · Intermediate · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Programming Principles, C++ (Programming Language), Data Structures, Computer Programming, Memory Management, Code Reusability, Program Development
★ 4.8 (460) · Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Embedded Software, Embedded Systems, Debugging, Data Structures, System Programming, Microarchitecture, C (Programming Language), Memory Management, Hardware Architecture, Computer Architecture, Software Design, Maintainability, Computer Programming Tools, System Configuration, Code Reusability, Peripheral Devices
★ 4.5 (532) · Intermediate · Course · 1 - 4 Weeks
Dartmouth College
Skills you'll gain: Memory Management, Command-Line Interface, C (Programming Language), Linux Commands, Linux, Computer Programming Tools, Embedded Systems, File I/O, Embedded Software, Software Visualization, Programming Principles, Computer Engineering, C and C++, Linux Servers, Algorithms, Computer Programming, Software Documentation, Computer Science, Software Engineering, Debugging
★ 4.6 (446) · Beginner · Specialization · 3 - 6 Months

University of Toronto
Skills you'll gain: Swift Programming, iOS Development, Apple Xcode, Mobile Development, Objective-C (Programming Language), Object Oriented Programming (OOP), Memory Management, Application Development, Development Environment, Programming Principles, Integrated Development Environments, Image Analysis, Computer Programming, Functional Design
★ 3.9 (1.4K) · Mixed · Course · 1 - 3 Months

Sage Publications
Skills you'll gain: Social Media Strategy, Digital Media Strategy, Paid media, Social Media Marketing, Social Media, Social Media Management, Social Media Content, Service Recovery, Social Media Analytics, Marketing Communications, Digital Marketing, Employee Engagement, Earned Media, Marketing, Consumer Behaviour, Customer Complaint Resolution, Brand Management, Brand Loyalty, Drive Engagement, Content Creation
Beginner · Course · 3 - 6 Months

University of Michigan
Skills you'll gain: Memory Management, C (Programming Language), C++ (Programming Language), Object Oriented Programming (OOP), Object Oriented Design, C and C++, Programming Principles, Data Structures, Secure Coding, Algorithms, Software Design, Application Security, Other Programming Languages, System Programming, Python Programming, Computer Architecture, Computer Programming, Java, Performance Tuning, Unix
★ 4.5 (250) · Intermediate · Specialization · 3 - 6 Months

Duke University
Skills you'll gain: C (Programming Language), Data Structures, C and C++, Programming Principles, Algorithms, Memory Management
★ 4.3 (350) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Kubernetes, Authentications, Role-Based Access Control (RBAC), Enterprise Security, Multi-Tenant Cloud Environments, Key Management, Security Controls, OAuth, Identity and Access Management, Authorization (Computing), Data Security, Encryption, User Accounts, YAML, Proxy Servers
Advanced · Course · 1 - 3 Months

Universidad Nacional Autónoma de México
Skills you'll gain: Java, Java Programming, Object Oriented Programming (OOP), Object Oriented Design, Computer Programming, Software Design, Programming Principles, Program Development, Software Documentation, Data Structures, Computational Logic, Memory Management
★ 4.1 (942) · Beginner · Course · 1 - 3 Months