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You can start many Coursera courses for free by previewing the first module. This includes video lectures, readings, and graded assignments—plus Coursera Coach support where available.

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To earn a certificate, you’ll need to pay for the course or apply for financial aid. Free access to the first module is a great way to begin learning, but certificates are only available after unlocking the full course.

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Previewing gives you free access to the first module—including graded assignments and support tools, where available. To unlock the rest of the course or earn a certificate, you’ll need to pay or apply for financial aid. Some programs also offer a 7-day free trial for full access.

Top Free Courses - Learn Free Online

Try a Course Free—Preview Lessons or Start a Free Trial

Status: Free
Princeton University
Computer Science: Programming with a Purpose
Skills you'll gain: Programming Principles, Computer Programming, Object Oriented Programming (OOP), Performance Tuning, Data Structures, Java Programming, Java, Program Development, Computational Thinking, Computer Science, Algorithms, Animations, Debugging
4.7
Rating, 4.7 out of 5 stars
1.3K reviews
Beginner · Course · 1 - 3 Months
Status: New
Status: Free Trial
Status: AI skills
IBM
IBM Java Developer
Skills you'll gain: Prompt Engineering, Software Development Life Cycle, Cloud-Native Computing, Software Architecture, Hibernate (Java), Database Design, Responsive Web Design, Docker (Software), Containerization, Git (Version Control System), GitHub, Object Oriented Programming (OOP), Microservices, CI/CD, Restful API, Java Programming, Engineering Software, Version Control, Database Management, Software Design
4.6
Rating, 4.6 out of 5 stars
6.1K reviews
Beginner · Professional Certificate · 3 - 6 Months
Status: Free
Princeton University
Algorithms, Part I
Skills you'll gain: Data Structures, Algorithms, Java, Performance Testing, Computer Programming, Java Programming, Theoretical Computer Science, Object Oriented Programming (OOP), Computational Thinking
4.9
Rating, 4.9 out of 5 stars
12K reviews
Intermediate · Course · 3 - 6 Months
Status: Free
Princeton University
Computer Science: Algorithms, Theory, and Machines
Skills you'll gain: Theoretical Computer Science, Data Structures, Computer Science, Computer Architecture, Algorithms, Programming Principles, Computational Logic, Computational Thinking, Java Programming, Computer Hardware
4.7
Rating, 4.7 out of 5 stars
716 reviews
Intermediate · Course · 1 - 3 Months
Status: Free
Princeton University
Algorithms, Part II
Skills you'll gain: Graph Theory, Data Structures, Algorithms, Theoretical Computer Science, Operations Research, Computational Thinking, Computer Programming, Network Routing, Programming Principles, Network Model, Java Programming
4.9
Rating, 4.9 out of 5 stars
2K reviews
Intermediate · Course · 3 - 6 Months
Status: Free Trial
LearnQuest
Introduction to Java
Skills you'll gain: Eclipse (Software), Java, Java Programming, Integrated Development Environments, Development Environment, Software Installation, Computer Programming, Programming Principles, Program Development, Object Oriented Programming (OOP)
4.6
Rating, 4.6 out of 5 stars
2.1K reviews
Beginner · Course · 1 - 4 Weeks

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Status: Free Trial
Codio
Core Java
Skills you'll gain: Apache Maven, JSON, JUnit, Java Programming, Java, Restful API, Integrated Development Environments, Programming Principles, Package and Software Management, Data Structures, Object Oriented Programming (OOP), Network Protocols, Unit Testing, Style Guides
4.8
Rating, 4.8 out of 5 stars
35 reviews
Intermediate · Course · 1 - 4 Weeks
Status: Preview
Universidad de Palermo
Introduction to Java
Skills you'll gain: Eclipse (Software), Java, Java Programming, Object Oriented Programming (OOP), Integrated Development Environments, Data Structures, Programming Principles, Algorithms, Computer Programming, Development Environment, Debugging, Software Development
Beginner · Course · 1 - 4 Weeks
Status: Free Trial
Codio
Java: Algorithms
Skills you'll gain: Algorithms, Data Structures, Java, Java Programming, Theoretical Computer Science, Computer Programming, Computational Thinking
4
Rating, 4 out of 5 stars
6 reviews
Intermediate · Course · 1 - 4 Weeks
Status: Free Trial
University of California San Diego
Learn to Teach Java: Inheritance and Recursion
Skills you'll gain: Java Programming, Java, Pedagogy, Debugging, Object Oriented Programming (OOP), Computer Programming, Computational Thinking, Cultural Responsiveness, Integrated Development Environments, Algorithms
4.7
Rating, 4.7 out of 5 stars
10 reviews
Beginner · Course · 1 - 3 Months
Status: Free Trial
Codio
Java Object Basics: Functions, Recursion, and Objects
Skills you'll gain: Object Oriented Programming (OOP), Software Documentation, Java Programming, Java, Computer Programming, Programming Principles, Computational Thinking, Computer Science
4.1
Rating, 4.1 out of 5 stars
21 reviews
Intermediate · Course · 1 - 4 Weeks
Status: Free Trial
Codio
Object-Oriented Java: Inheritance and Encapsulation
Skills you'll gain: Object Oriented Programming (OOP), Java Programming, Java, Computer Programming, Data Validation, Maintainability, Computer Science
4.1
Rating, 4.1 out of 5 stars
21 reviews
Intermediate · Course · 1 - 4 Weeks