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

10 Best Python Courses for 2026: For AI and Data
11 Best Product Management Courses for 2026: Certificates and AI Skills
14 Best AI Courses for 2026: For Beginners & Coders
Guide: How to Sign up for Coursera Courses for Free
[2026] 8000+ OpenCourseWare Courses from Top Institutions

Write for The Report

Visit The Report

600 Free Google Certifications
Trending

Most common

Popular subjects

Programming
27,720 courses
Cybersecurity
12,017 courses
Digital Marketing
1,449 courses

Popular courses

Sustainable Tourism: Society & Environmental Aspects
Wageningen University
Introducción a la inversión bursátil
Universitat Politècnica de València
Industrial Pharmacy-I
H.N.B Garhwal University (A Central University) Srinagar Garhwal

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 (13,689)
2. With certificate (25)
3. From universities (8,165)
Level
1. Beginner (6,928)
2. Intermediate (5,389)
3. Advanced (1,370)
Duration
Subject
1. STEM (4,157)
2. People & Society (3,254)
3. Business (1,898)
4. Health & Wellness (1,811)
5. Technology (1,198)
6. Creative (1,109)
7. Personal Growth & Lifestyle (250)
Language
1. English (1,833)
2. Chinese (11,751)
3. French (2)
4. German (1)
5. Indonesian (3)
6. Italian (2)
7. Japanese (6)
8. Korean (9)
9. Pashto (1)
10. Russian (32)
11. Spanish (27)
12. Swahili (1)
13. Thai (21)

General Chemistry

A first college chemistry course that builds the foundation for inorganic, organic, analytical, and physical chemistry.
- XuetangX
- Self-Paced
- Free Online Course
Linear Algebra

To illustrate the beauty and power of Linear Algebra.
- XuetangX
- Self-Paced
- Free Online Course
Cities and the Challenge of Sustainable Development

What is a sustainable city? Learn the basics here.
- XuetangX
- Self-Paced
- Free Online Course
Microbiology

Microbes are the most abundant organisms on earth and have great impact on other areas of biology and general human welfare. Who and where are they, what do they do, and how? You will learn it from this course.
- XuetangX
- Self-Paced
- Free Online Course
Microbiology

1. Promoting originality via science and education integration 2. Laying foundation of integration 3. Promoting multi-thinking learning
- XuetangX
- Self-Paced
- Free Online Course
Physical Geology

This is where you begin to “rock” your life. Further get to know our planet Earth, the relationship between human survive and the environment. Earth is unique and fragile; does it need our protection?
- XuetangX
- Self-Paced
- Free Online Course
Histology and Embryology（组织学与胚胎学）

Build a microscopic framework of cells, tissues, organs, and systems, then trace human development from fertilization through fetal membranes and placenta.
- XuetangX
- Self-Paced
- Free Online Course
Analytical Chemistry for Engineering

Application-oriented analytical chemistry course covering titration, electrochemical, spectroscopic, and chromatographic methods for determining material composition, content, and structure.
- XuetangX
- Self-Paced
- Free Online Course
Fundamentals of Inorganic Materials Science

Explore how crystal defects, phase diagrams, diffusion, solid-state reactions, and sintering connect material composition and structure to properties and manufacturing.
- XuetangX
- Self-Paced
- Free Online Course
Physics of Fluid Flow in Porous Media（渗流物理）

Explores fluid flow through porous media using reservoir-fluid and rock properties, physical models, and numerical simulation methods.
- XuetangX
- Self-Paced
- Free Online Course
Solid State Physics

Explore how crystal structure and microscopic particle interactions determine the thermal, optical, electrical, and other properties of solids.
- XuetangX
- Self-Paced
- Free Online Course
Planetary Boundaries

Can our planet continue to support the current scope of human activity?
- XuetangX
- Self-Paced
- Free Online Course
Applied Statistics

An applied statistics foundation covering data organization, probability, sampling, confidence intervals, and simple linear regression through explanations, exercises, and cases.
- XuetangX
- Self-Paced
- Free Online Course
Principles of Catalysis

Why does a catalyst promote a reaction? What are the working principles of typical catalysts used in petrochemical industry? Learn the basics here.
- XuetangX
- Self-Paced
- Free Online Course
Applied Analytical Chemistry

The Applied Analytical Chemistry course covers various analytical chemistry techniques and theories, including spectroscopy, chromatography, electrochemistry, and biochemical analysis techniques.
- 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.