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

Skills you'll gain: Embedded Systems, C (Programming Language), Embedded Software, Data Structures, Programming Principles, Data Management, Performance Tuning, Software Development
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Secure Coding, Application Security, Open Web Application Security Project (OWASP), Security Engineering, Cybersecurity, Security Requirements Analysis, Security Testing, Vulnerability Assessments, Code Review, Software Design, Encryption, Vulnerability Management, Data Security, Cryptography, Continuous Monitoring, Authentications, Development Testing, System Monitoring, Authorization (Computing)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Computational Thinking, Algorithms, Graph Theory, Data Structures, Computer Programming, C++ (Programming Language), Object Oriented Programming (OOP)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Version Control, Debugging, Software Design Patterns, Object Oriented Design, Object Oriented Programming (OOP), Software Development, Git (Version Control System), Programming Principles, Software Design, Computer Programming, Software Engineering, Integrated Development Environments, Command-Line Interface
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Programming Principles, Data Dictionary, Computational Logic, Data Cleansing, Data Structures, Python Programming, Pseudocode, Data Manipulation, Debugging
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Data Structures, Plot (Graphics), Data-oriented programming, Programming Principles, Python Programming, Data Storage
Intermediate · Guided Project · Less Than 2 Hours

Dartmouth College
Skills you'll gain: C (Programming Language), Computer Architecture, Embedded Software, Computer Engineering, Computer Programming, Computer Science, Program Development, Data Structures, Linux, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Debugging, Development Environment, Open Source Technology, Integrated Development Environments, Software Development Tools, AI Workflows, Software Engineering, Application Development, Javascript
Intermediate · Guided Project · Less Than 2 Hours

Coursera
Skills you'll gain: TypeScript, Scripting, Web Development Tools, Scripting Languages, Programming Principles, Computational Thinking, Computer Programming
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Data Structures, C++ (Programming Language), C and C++, Programming Principles, Algorithms, Theoretical Computer Science, Object Oriented Programming (OOP)
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: C++ (Programming Language), Data Structures, File I/O, Data Store, Data Cleansing, Data Mapping, Data Integrity
Intermediate · Guided Project · Less Than 2 Hours