Coursera Plus Annual is 40% Off — Ends July 6.

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
Generative AI
Cloud Computing
Cybersecurity
Game Development
Product Management
View all Technology

Business

Management & Leadership
Finance
Entrepreneurship
Marketing
Strategic Management
Industry Specific
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
View all STEM

Health & Wellness

Nutrition & 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
Sustainability
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
Critical Thinking
View all Personal Growth & Lifestyle

A Simplilearn Certificate Goes on LinkedIn Each Minute; Here’s How Krishna Kumar Built It From a Blog

17 years ago, Krishna Kumar started offering free PMP prep online. Today, it’s a leading digital upskilling platform that helps millions upskill in AI, cybersecurity, data science, and more.

Class Central Team Jun 22, 2026

Latest

6 Best SOC Analyst Courses in 2026
[2026] Your Quantum Leap into Physics: A Guide to 500 Free Online Courses
The Best Apps to Learn Arabic in 2026
[2026] 2000+ Free Developer and IT Certifications
8 Best AI Marketing Courses in 2026

Write for The Report

Visit The Report

600 Free Google Certifications
Trending

Most common

Popular subjects

Artificial Intelligence
30,937 courses
Psychology
3,320 courses
Digital Skills
437 courses

Popular courses

Learn to Program: The Fundamentals
University of Toronto
Unlocking Information Security I: From Cryptography to Buffer Overflows
Tel Aviv University
Elements of AI
University of Helsinki

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.

13,034 courses

Showing 13,034 courses

Sort by Relevancy

Filter by

Filters

1. Free course (13,034)
2. With certificate (25)
3. From universities (7,886)
Level
1. Beginner (2,900)
2. Intermediate (7,757)
3. Advanced (2,373)
Duration
Subject
1. STEM (3,911)
2. People & Society (3,085)
3. Business (2,002)
4. Health & Wellness (1,454)
5. Technology (1,296)
6. Creative (861)
7. Personal Growth & Lifestyle (348)
Language
1. English (1,420)
2. Chinese (11,528)
3. French (2)
4. Indonesian (2)
5. Italian (2)
6. Japanese (4)
7. Korean (4)
8. Pashto (1)
9. Russian (27)
10. Spanish (20)
11. Thai (24)

产业生态学 Industrial ecology

产业生态学以人类与自然环境的作用界面—产业系统作为研究对象，借助优化产业系统来协调人类与环境间的关系。本课程为全英文授课并配有中英文双语字幕。
- XuetangX
- Self-Paced
- Free Online Course
生态模拟


掌握生态系统建模的基本理论和实践技能，运用STELLA软件进行系统动力学分析，从捕食者-猎物模型到COVID-19案例，探索复杂生态系统的动态变化和内在机理。
- XuetangX
- Self-Paced
- Free Online Course
循环经济与可持续发展型企业


Explore sustainable business development through circular economy principles, focusing on material flows, environmental management, and innovative enterprise solutions for a greener future.
- XuetangX
- Self-Paced
- Free Online Course
环境功能材料


Discover the principles and applications of environmental functional materials, from light-driven to surface-energy materials, focusing on design, preparation, and practical implementation in pollution control and environmental protection.
- XuetangX
- Self-Paced
- Free Online Course
流域水质模型与模拟


Master the principles and applications of watershed water quality modeling, from basic transport mechanisms to advanced simulation tools like SWAT, MIKE21, and AQUATOX.
- XuetangX
- Self-Paced
- Free Online Course
流域水环境学


Delve into watershed environmental science, exploring water systems, pollution control, and ecosystem management through comprehensive study of rivers, lakes, wetlands, and their interconnected dynamics.
- XuetangX
- Self-Paced
- Free Online Course
国际人道与可持续发展创新者计划2020年全球在线学堂项目全球在线启动开幕式暨研讨会


2020年6月30日HDI项目将进行全球在线启动，邀约多位相关国际知名专家共同探讨疫情应对与全球风险治理的可持续未来。
- XuetangX
- Self-Paced
- Free Online Course
是我们创造了算法，还是算法控制着我们？

探索算法如何深入影响现代生活，从交通出行到社交关系，了解人工智能决策系统对个人选择和社会发展的重要作用。
- XuetangX
- Self-Paced
- Free Online Course
流域水污染治理与生态修复


Dive into comprehensive water pollution control and ecological restoration strategies for watersheds in China, covering environmental challenges, management approaches, and practical solutions.
- XuetangX
- Self-Paced
- Free Online Course
环境类专业野外实习与实践


Master practical environmental monitoring techniques and field research methods for studying water, soil, air, noise, ecology, and landscapes through hands-on training and guided experiments.
- XuetangX
- Self-Paced
- Free Online Course
恢复生态学


课程大量使用动画、视频、彩图、场景模拟、场景实拍等手段，结合生动细致的讲解，让学员掌握恢复生态学的最新原理、技术和方法。
- XuetangX
- Self-Paced
- Free Online Course
固体废物处置与资源化


Master the principles and techniques of solid waste management, from collection and transportation to treatment methods like incineration, composting, and landfill disposal. Learn practical engineering skills for waste processing and resource recovery.
- XuetangX
- Self-Paced
- Free Online Course
环境与可持续发展


Explore environmental challenges, pollution control technologies, and sustainable development strategies, with a focus on China's ecological protection needs and global environmental issues.
- XuetangX
- Self-Paced
- Free Online Course
认识环境保护未来


Discover how environmental protection impacts daily life through comprehensive exploration of water, air, soil, noise, and waste management, with practical applications and scientific principles.
- XuetangX
- Self-Paced
- Free Online Course
环境规划


Dive into comprehensive environmental planning principles, from water and air quality management to noise control and waste treatment, with practical methods for sustainable development and pollution prevention.
- XuetangX
- Self-Paced
- Free Online Course

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.