Class Central

Rankings
Career Certificates

Subjects

View all

Technology
Business
Creative
STEM
Health & Wellness
People & Society
Personal Growth & Lifestyle

View all Subjects

Universities
The Report

Courses from 1000+ universities

Rankings

Best Courses

Best of All Time
Best of the Year

Most Popular Courses

Most Popular of All Time
Most Popular of the Year

Career Certificates

Generative AI
UX Design
Data Science
Finance
DevOps
Project Management
View all Career Certificates

Technology

Computer Science
Artificial Intelligence
Data Science
Web Development
Programming
Databases
IT & Networking
DevOps
UX/UI Design
Blockchain & Cryptocurrency
Extended Reality (XR)
Generative AI
Cloud Computing
Cybersecurity
Game Development
Product Management
View all Technology

Business

Management & Leadership
Finance
Entrepreneurship
Marketing
Strategic Management
Project Management
Sales
Business Software
Real Estate
Professional Development
Accounting
Supply Chain Management
Business Strategy
Human Resources
View all Business

Creative

Music
Digital Media
Visual Arts
Design
Crafts
Performing Arts
AI Art
View all Creative

STEM

Mathematics
Engineering
Science
Statistics & Probability
Chemistry
Physics
Environmental Science
Astronomy
Biology
Agriculture
View all STEM

Health & Wellness

Disease & Disorders
Public Health
Health Care
Nursing
Mental Health
Continuing Medical Education (CME)
Medicine
Wellness
Nutrition
View all Health & Wellness

People & Society

Humanities
Education & Teaching
Social Sciences
History
Literature
Sociology
Economics
Psychology
Anthropology
Political Science
Law
Language Learning
Writing
Philosophy
Religion
View all People & Society

Personal Growth & Lifestyle

Personal Development
Sports & Recreation
Personal Finance
Parenting & Family
Food & Drink
Self-Defense & Martial Arts
Gardening
Productivity & Time Management
Games
Study Skills
Travel
Pets & Pet Care
Beauty & Makeup
Home & Living
Critical Thinking
View all Personal Growth & Lifestyle

Banning Telegram Can’t Stop Paper Leaks: Inside India’s NEET Exam Scandal

India banned Telegram after the NEET paper leak led to a retest for 2.28 million students. Class Central studied the scam, the money trail, and other platforms the leaks could move to.

Manoj Sharma Jul 29, 2026

Latest

13 Best Go (Golang) Courses for 2026
10 Best Positive Psychology and Happiness Courses for 2026: Practice, Not Theory
[2026] Medical Education Platforms with 800+ Free Certificates & CME Credit
450+ Free Google Certifications, Courses & Badges [2026]
12 Best Deep Learning Courses for 2026: From Neural Nets to Transformers

Write for The Report

Visit The Report

600 Free Google Certifications
Trending

Most common

Popular subjects

Digital Marketing
4,259 courses
Artificial Intelligence
34,635 courses
IT & Networking
12,420 courses

Popular courses

Teaching Young Learners Online
British Council
Bases Matemáticas: Números y terminología
Universitat Politècnica de València
End of Life Care: Challenges and Innovation
University of Glasgow

Organize and share your learning with Class Central Lists.

View our Lists Showcase

Sign up

Log in or Sign up

Log in
Sign up

Subjects
STEM

Free Online

STEM Courses and Certifications

Transform your teaching with evidence-based STEM education strategies, inclusive practices, and innovative instructional design. Master tools like PhET simulations and activity-based learning through courses on edX, Coursera, and OpenLearn, designed for educators seeking to create engaging, interdisciplinary STEM experiences.

70,360 courses

Explore Subjects

STEM topics

Engineering
Mathematics
Physics
Biology
Environmental Science
Statistics & Probability
Astronomy
Chemistry
Agriculture
Science

Learners also browse

Digital Media
Computer Science
Robotics
Digital Literacy
Conversational AI
Media Literacy
Teacher Professional Development
Course Development

Showing 70,360 courses

Sort by Relevancy

Filter by

Filters

1. Free course (63,968)
2. With certificate (7,878)
3. Career certificates (443)
4. From universities (8,636)
Level
1. Beginner (10,748)
2. Intermediate (19,350)
3. Advanced (38,997)
Duration
1. < 30 mins (15,698)
2. 30 - 60 mins (20,752)
3. 1 - 2 hours (16,587)
4. 2 - 5 hours (2,776)
5. 5 - 10 hours (1,544)
6. 10+ hours (5,000)
Language
1. English (61,798)
2. Arabic (46)
3. Basque (1)
4. Bengali (24)
5. Catalan (13)
6. Chinese (3,653)
7. Czech (8)
8. Dutch (5)
9. Estonian (2)
10. Finnish (5)
11. French (795)
12. German (163)
13. Greek (7)
14. Hebrew (20)
15. Hindi (144)
16. Hungarian (19)
17. Indonesian (7)
18. Italian (152)
19. Japanese (193)
20. Kannada (4)
21. Kazakh (11)
22. Korean (73)
23. Macedonian (3)
24. Malayalam (3)
25. Norwegian (2)
26. Polish (94)
27. Portuguese (911)
28. Romanian (8)
29. Russian (551)
30. Serbian (2)
31. Slovak (2)
32. Spanish (475)
33. Swedish (1)
34. Tamil (7)
35. Thai (98)
36. Turkish (57)
37. Ukrainian (82)
38. Urdu (2)
39. Vietnamese (6)
40. Welsh (2)

Ratio, proportion and percentages
2 ratings at OpenLearn

From politics to cookery, ratios, proportions and percentages are part of everyday life. This free course is designed to help you become more familiar with how figures can be manipulated, then you ...
- OpenLearn
- 5 hours
- Self-Paced
- Free Certificate
Studying mammals: Meat eaters
2 ratings at OpenLearn

The powerful and majestic carnivores are the focus of many television documentaries. In this free course, Studying mammals: Meat eaters, we will delve into the lives of these fearsome hunters and ...
- OpenLearn
- 10 hours
- Self-Paced
- Free Certificate
Studying mammals: Plant predators
2 ratings at OpenLearn

From the mouse-deer to the elephant, plant eaters come in all shapes and sizes. But how do they manage to flourish on a salad diet? In this free course, Studying mammals: Plant predators, we will ...
- OpenLearn
- 10 hours
- Self-Paced
- Free Certificate
Studying mammals: Return to the water
2 ratings at OpenLearn

Some of the most unusual and versatile of all the mammals are the groups that live, feed and reproduce underwater. In this free course, Studying mammals: Return to the water, we will see how these ...
- OpenLearn
- 10 hours
- Self-Paced
- Free Certificate
Studying mammals: The opportunists
2 ratings at OpenLearn

Many mammals are food specialists, with complex adaptations that gear them toward a particular food source. So how do the omnivores survive and prosper without these fancy evolutionary features? ...
- OpenLearn
- 10 hours
- Self-Paced
- Free Certificate
Studying mammals: The social climbers
2 ratings at OpenLearn

Monkeys have long fascinated us because of their similarities to the human race. In this free course, Studying mammals: The social climbers, you will find out about some of the characteristics that...
- OpenLearn
- 10 hours
- Self-Paced
- Free Certificate
Young lives: is now a good time to be young?
2 ratings at OpenLearn

This free course, Young lives: is now a good time to be young?, looks at young lives in the UK today, asking the question is this a good time to be young? It focuses on some of the factors that ...
- OpenLearn
- 6 hours
- Self-Paced
- Free Certificate
General principles of cellular communication
2 ratings at OpenLearn

Learn about how cells sense and respond to extrinsic stimuli, a capacity that allows them to communicate with each other and to respond to changes in their environment. This free course, General ...
- OpenLearn
- 8 hours
- Self-Paced
- Free Certificate
Group theory
2 ratings at OpenLearn

This free course consolidates and builds on group theory studied at OU level 2 or equivalent. Section 1 describes how to construct a group called the direct product of two given groups, and then ...
- OpenLearn
- 16 hours
- Self-Paced
- Free Certificate
Introducing vectors for engineering applications
2 ratings at OpenLearn

Applied mathematics is a key skill for practicing engineers and mathematical modelling is an ever-increasing field within engineering. This free course, Introducing vectors for engineering ...
- OpenLearn
- 5 hours
- Self-Paced
- Free Certificate
John Napier
2 ratings at OpenLearn

This free course looks at Scotsman John Napier, best known to for his treatise on Protestant religion. However, it was his interest in a completely different subject that radically altered the ...
- OpenLearn
- 3 hours
- Self-Paced
- Free Certificate
Modelling and estimation
2 ratings at OpenLearn

This free course is concerned with modelling and estimation and looks in particular at the binomial distribution. Section 1 starts by defining probability, introduces relevant notation and briefly ...
- OpenLearn
- 16 hours
- Self-Paced
- Free Certificate
Modelling events in time
2 ratings at OpenLearn

This free course develops ideas about probability and random processes. Sections 1 and 2 introduce the fundamental ideas of random processes through a series of examples. Section 3 describes a ...
- OpenLearn
- 16 hours
- Self-Paced
- Free Certificate
Rings and polynomials
2 ratings at OpenLearn

This free course contains an introduction to rings and polynomials. We see that polynomial rings have many properties in common with the integers; for example, we can define a division algorithm, ...
- OpenLearn
- 16 hours
- Self-Paced
- Free Certificate
Univariate continuous distribution theory
2 ratings at OpenLearn

This free course looks at a number of the basic properties of statistical models. Section 1 is concerned with the distributions of continuous random variables which are described by their ...
- OpenLearn
- 10 hours
- Self-Paced
- Free Certificate

Career Certificates

Generative AI
UX Design
Data Science
Finance
DevOps
Project Management
All Subjects

Coursera
edX
Noble Desktop
Simplilearn
CodeSignal
Boot.dev
All Universities

The Report by Class Central RSS Feed

Series Finale of Online Education
Udemy Earns More, Pays Less
Duolingo's 2026 Strategy
1000s of Free Certificates
Best Courses Guides
Best of All Time
Most Popular of All Time

About Class Central

Class Central aggregates courses from many providers to help you find the best courses on almost any subject, wherever they exist.

Facebook
Twitter
LinkedIn
YouTube
Bluesky

Class Central © 2011-2026 Privacy Policy

About Us
Join Us
Write for Us
Help Center
Contact Us

Share

Facebook
Twitter
Bluesky
Email

Never Stop Learning.

Get personalized course recommendations, track subjects and courses with reminders, and more.

Sign up for free

Someone learning on their laptop while sitting on the floor.