Computer courses can help you learn programming languages like Python and Java, data structures, algorithms, and web development fundamentals. You can build skills in software design, debugging, and database management, along with understanding cybersecurity principles. Many courses introduce tools such as Git for version control, SQL for database queries, and frameworks like React for building user interfaces, demonstrating how these skills are applied in real-world projects.

Microsoft
Skills you'll gain: Data Storytelling, Leaflet (Software), Rmarkdown, Version Control, Web Scraping, Regression Analysis, Data Visualization, Statistical Analysis, Data Manipulation, Geospatial Information and Technology, Time Series Analysis and Forecasting, Tidyverse (R Package), Statistical Software, Microsoft Azure, Logistic Regression, Data Cleansing, Data Wrangling, Software Documentation, R Programming, R (Software)
★ 4 (7) · Beginner · Professional Certificate · 3 - 6 Months

Infosec
Skills you'll gain: Secure Coding, Distributed Denial-Of-Service (DDoS) Attacks, Application Security, Authorization (Computing), Authentications, Data Validation, Encryption, Security Software, Security Controls, Data Security, Vulnerability Scanning, Endpoint Security, Role-Based Access Control (RBAC), Intrusion Detection and Prevention, Security Awareness, Cybersecurity, Configuration Management, Package and Software Management, Web Applications, Web Development Tools
★ 4.5 (25) · Beginner · Specialization · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Retrieval-Augmented Generation, Unstructured Data, LLM Application, Large Language Modeling, Data Preprocessing, Metadata Management, Data Processing, JSON, Image Analysis, Data Transformation, Document Management, Vision Transformer (ViT)
★ 4.3 (15) · Beginner · Project · Less Than 2 Hours

Skills you'll gain: Frontend Integration, API Testing, React.js, Authentications, Containerization, OAuth, Cloud Deployment, Back-End Web Development, PostgreSQL, API Gateway, Software Documentation, Amazon Web Services, Event-Driven Programming, Server Side, Database Development, Front-End Web Development, Python Programming, Database Management, Restful API, Object-Relational Mapping
★ 4.1 (16) · Intermediate · Specialization · 3 - 6 Months

EDUCBA
Skills you'll gain: Spring Framework, Spring Boot, Application Development, Redis, Java Programming, Frontend Integration, Object-Relational Mapping, Web Development, Database Development, Integrated Development Environments, Application Security, Authentications, Build Tools, Performance Tuning, Unit Testing, Authorization (Computing), Command-Line Interface, Data Access, Event Monitoring, Software Configuration Management
★ 4.5 (44) · Mixed · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Microsoft Azure, Cloud Management, Cloud Computing, Cloud Infrastructure, Infrastructure As A Service (IaaS), Cloud Deployment, Cloud Services, Cloud Platforms, Infrastructure as Code (IaC), Virtual Machines, Hybrid Cloud Computing, System Monitoring, Cloud Security, Scalability
★ 4.5 (111) · Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), HTML and CSS, Web Development, Typography
★ 4.7 (42) · Intermediate · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: File I/O, Object Oriented Programming (OOP), Python Programming, Programming Principles, Code Reusability, Object Oriented Design, File Management, Data Structures, Computer Programming, Algorithms, Data Storage, Data Management
★ 3.9 (12) · Beginner · Course · 1 - 4 Weeks
Codio
Skills you'll gain: Apache Maven, Build Tools, JSON, JUnit, Java Programming, Java, Web Services, Programming Principles, Package and Software Management, Data Structures, Object Oriented Programming (OOP), Network Protocols, Unit Testing, Style Guides
★ 4.7 (37) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Rust (Programming Language), Data Structures, Memory Management, Code Reusability, Package and Software Management, Blockchain, Development Environment, Web Development, Performance Testing, Programming Principles, System Programming, Algorithms, Integrated Development Environments, Software Testing
★ 3.7 (26) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Blockchain, Cryptography, Cybersecurity, Network Security, Cryptographic Protocols, Data Security, Public Key Cryptography Standards (PKCS), Cyber Risk, Data Integrity, Transaction Processing
★ 5 (7) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, Scalability, Authentications, JSON, Authorization (Computing), Web Development Tools, Web Applications, Web Development, Server Side, Secure Coding, JavaScript Frameworks, Back-End Web Development, Application Frameworks, Javascript, Restful API, Development Environment, Event-Driven Programming, Operating Systems, Email Automation, Integrated Development Environments
★ 4.5 (53) · Intermediate · Course · 1 - 4 Weeks