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

Chasing 100M Daily Users, Duolingo Reconsiders Ads, Paying Influencers, and Its Most Expensive Plan

AI got cheap enough that Duolingo’s most expensive plan may not survive it. I read the earnings call transcript and opened the app to see what is actually changing for learners.

Dhawal Shah Sep 03, 2026

Latest

[2026] 8000+ OpenCourseWare Courses from Top Institutions
[2026] 17% of Coursera Courses Have Peer Reviews: Here Are the Best
7 Best Online First Aid Courses and Sites for 2026: CPR, AED, and Emergency Response
7 Best Node.js Courses in 2026: Build APIs in JavaScript
12 Best Data Analysis Courses for 2026: From Data to Insights

Write for The Report

Visit The Report

600 Free Google Certifications
Trending

Most common

Popular subjects

Artificial Intelligence
17,494 courses
IT & Networking
9,349 courses
Software Engineering
9,442 courses

Popular courses

Supporting Victims of Domestic Violence
The University of Sheffield
Know Thyself - The Value and Limits of Self-Knowledge: The Examined Life
University of Edinburgh
Understanding Dementia
University of Tasmania

Organize and share your learning with Class Central Lists.

View our Lists Showcase

Sign up

Log in or Sign up

Log in
Sign up

Providers
XuetangX

Free Online

XuetangX Courses

XuetangX is an open online learning platform for Chinese students. It offers massive courses in multiple disciplines, with a mission to build an affordable, quality learning environment for everyone.

13,512 courses

Showing 13,512 courses

Sort by Relevancy

Filter by

Filters

1. Free course (13,512)
2. With certificate (25)
3. From universities (8,083)
Level
1. Beginner (6,837)
2. Intermediate (5,324)
3. Advanced (1,349)
Duration
Subject
1. STEM (4,095)
2. People & Society (3,224)
3. Business (1,878)
4. Health & Wellness (1,789)
5. Technology (1,177)
6. Creative (1,088)
7. Personal Growth & Lifestyle (249)
Language
1. English (1,799)
2. Chinese (11,616)
3. French (2)
4. German (1)
5. Indonesian (3)
6. Italian (2)
7. Japanese (6)
8. Korean (8)
9. Pashto (1)
10. Russian (25)
11. Spanish (27)
12. Swahili (1)
13. Thai (21)

Production Planning and Control
1 rating

Learn methods for coordinating capacity, materials, inventory, schedules, and maintenance to control modern production systems.
- XuetangX
- Self-Paced
- Free Online Course
Shenyang Agricultural University
Food Biotechnology
1 rating

Explore how modern biotechnology transforms food production, detection, functional foods, and the design of novel food materials.
- XuetangX
- Self-Paced
- Free Online Course
走进心理学


如何解读达芬奇密码？一个人梦游他自己知道么？先有语言还是先有思想？怎样能够拥有超凡的单词量？本门课将用最新最酷的心理学理论来解答这些问题。
- XuetangX
- Self-Paced
- Free Online Course
Tsinghua Global Summer School 2020（简版）

Tsinghua’s first-ever virtual summer school, Toward a Post-pandemic World, will offer global leaders of tomorrow a unique interdisciplinary platform to be immersed and inspired.
- XuetangX
- Self-Paced
- Free Online Course
China’s Perspective on Climate Change

Understand China's position, actions and future plans on climate change and its impacts.
- XuetangX
- Self-Paced
- Free Online Course
Data Structures and Algorithm Design Part I

Learn the basics of data structures and methods to design algorithms and analyze their performance.
- XuetangX
- Self-Paced
- Free Online Course
Data Structures and Algorithm Design Part II

Learn the basics of data structures and methods to design algorithms and analyze their performance.
- XuetangX
- Self-Paced
- Free Online Course
Combinatorics and Algorithms Design

Count with permutations, generating functions and the inclusion-exclusion principle, then design algorithms using incremental, divide-and-conquer, randomized and dynamic programming paradigms.
- XuetangX
- Self-Paced
- Free Online Course
Exploring Psychology's Core Concepts

This course will answer questions and more with psychology theories.
- XuetangX
- Self-Paced
- Free Online Course
微积分-1

本课程讲授常规理工科微积分的前半部分(一元微积分)。以中英文对照的方式讲授，并使用以英文为主的教材和学习资料。
- XuetangX
- Self-Paced
- Free Online Course
微积分-2

以中英文对照、英文为主，训练级数、傅立叶级数与多元微积分的理解、应用和计算技能。
- XuetangX
- Self-Paced
- Free Online Course
Introduction to Psychology

Explore psychological research to understand basic theories and methods of scientific psychology with a strong focus on positive psychology.
- XuetangX
- Self-Paced
- Free Online Course
Computational Geometry

In this introductory computer science course, explore geometry, develop geometric thinking, and learn geometric algorithms.
- XuetangX
- Self-Paced
- Free Online Course
AI and Industrial Innovation

Mastering AI-Industry Integration: Leading Sustainable Innovation—A Future-Proof Course for Entrepreneurs & Visionaries!
- XuetangX
- Self-Paced
- Free Online Course
AI and Sustainable Convergence

Harnessing the Dual Helix of AI & Blockchain: Deconstructing the ESG Future Equation—Reshaping Sustainability’s Tech Levers & Ethical Imperatives
- XuetangX
- Self-Paced
- Free Online Course

Career Certificates

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

Coursera
Udemy
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.