Best Online Courses in 2025

Online Courses - Learn Anything, On Your Schedule.

Key Udemy features:

Headquarters

FlexiQuiz is a powerful online test generator that enables you to create engaging online quizzes, tests, or exams in minutes. Choose from 100's of features to create a customized quiz that meets your objectives for business, education, or fun. .

Key FlexiQuiz features:

Question bank Groups Courses Add media

Try for free freemium $25.0 / Monthly (Essentials plan)

Build skills with courses, certificates, and degrees online from world-class universities and companies.

Key Coursera features:

Headquarters

Learn the technical skills you need for the job you want. As leaders in online education and learning to code, we’ve taught over 45 million people using a tested curriculum and an interactive learning environment.

Key Codecademy features:

Interactive Learning Wide Range of Courses Beginner-Friendly Flexible Learning Paths

Learn to code by helping nonprofits.

Key Free Code Camp features:

Comprehensive Curriculum Project-Based Learning Community Support Real-World Non-Profit Projects

Best Courses. Top Institutions. Learn anytime, anywhere.

Key edX features:

High-Quality Courses Variety of Subjects Verified Certificates Flexible Learning

Khan Academy offers online tools to help students learn about a variety of important school subjects. Tools include videos, practice exercises, and materials for instructors. Read more about Khan Academy.

Key Khan Academy features:

Free Access Wide Range of Subjects Personalized Learning High-Quality Content

Practice and level up your development skills and prepare for technical interviews.

Key LeetCode features:

Comprehensive Problem Library Active Community Interview Preparation Company-specific Questions

Open Source

Create and sell beautiful online courses with the platform used by the best online entrepreneurs to sell $100m+ to over 4 million students worldwide.

Key Teachable features:

Ease of Use Customization Integrated Payment Processing Analytics and Reporting

Join Udacity to learn the latest in Deep Learning, Machine Learning, Web Development & more, with Nanodegree programs & free online courses.

Key Udacity features:

Industry-Relevant Curriculum Hands-On Projects Mentorship and Support Flexible Learning

How it works. This is the website we wish we had when we were learning on our own. We scour the internet looking for only the best resources to supplement your learning and present them in a logical order.

Key The Odin Project features:

Comprehensive Curriculum Project-Based Learning Community Support Free of Cost

Open Source

Pluralsight is a learning management system (LMS) that helps aspiring tech professionals learn the basics of the trade and lets established professionals expand their skill sets.

Key Pluralsight features:

Comprehensive Course Library Skill Assessments Expert Instructors Offline Access

Download and solve practice problems in over 30 different languages.

Key Exercism features:

Free Access Mentorship Wide Variety of Languages Structured Learning Tracks

Open Source

Achieve code mastery through challenge.

Key Codewars features:

Wide Range of Challenges User Engagement Multiple Languages Gamification

Open Source