Class Central

Rankings
Collections

Subjects

View all

Computer Science
Health & Medicine
Mathematics
Business
Humanities
Engineering
Science
Education & Teaching
Social Sciences
Art & Design
Artificial Intelligence
Data Science
Programming
Personal Development
Information Security (InfoSec)

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

Collections

Computer Science

Algorithms and Data Structures
Internet of Things
Information Technology
Computer Networking
Machine Learning
DevOps
Deep Learning
Cryptography
Quantum Computing
Human-Computer Interaction (HCI)
Distributed Systems
Blockchain Development
Operating Systems
Automata Theory
Compilers
SCADA
Mainframe
Digital Image Processing
Algorithm Design
Information Theory
View all Computer Science

Health & Medicine

Nutrition & Wellness
Disease & Disorders
Public Health
Health Care
Nursing
Anatomy
Continuing Medical Education (CME)
Blood Pressure
Women's Health
Occupational Therapy
Hygiene
Healthcare Innovation
Music Therapy
Holistic Health
Ayurveda
Massage Therapy
Swallowing Disorders
Pharmaceutics
View all Health & Medicine

Mathematics

Statistics & Probability
Foundations of Mathematics
Calculus
Discrete Mathematics
Trigonometry
Geometry
Algebra
Precalculus
Number Theory
Combinatorics
Mathematical logic
Linear Programming
Graph Theory
Set Theory
Group Theory
Differential Equations
Polynomials
Integration
Mathematical Analysis
Mathematical Thinking
View all Mathematics

Business

Management & Leadership
Finance
Entrepreneurship
Marketing
Strategic Management
Industry Specific
Business Intelligence
Accounting
Human Resources
Project Management
Sales
Design Thinking
Business Software
Customer Service
Nonprofit Management
Innovation
Operations Management
Corporate Governance
Business Proposal
Business Models
View all Business

Humanities

History
Literature
Language Learning
Grammar & Writing
Philosophy
Religion
ESL
Culture
Sports
Journalism
Ethics
Linguistics
Food
Library Science
Reading
Crisis Management
Games
Emergency Management
Performing Arts
Religious Studies
View all Humanities

Engineering

Electrical Engineering
Mechanical Engineering
Civil Engineering
Robotics
Nanotechnology
GIS
Textiles
Manufacturing
BIM
CAD
Chemical Engineering
Energy Systems
Aerospace Engineering
Finite Element Analysis
GD&T (Geometric Dimensioning and Tolerancing)
Geotechnical Engineering
Reliability Engineering
Petroleum Engineering
Control Theory
Environmental Engineering
View all Engineering

Science

Chemistry
Physics
Environmental Science
Astronomy
Biology
Agriculture
Materials Science
Earth Science
Applied Science
Forensic Science
Meteorology
Horology
Paleontology
Fire Science
Sensory Science
Ergonomics
Physical Sciences
Complex Systems
Scientific Method
Medicine
View all Science

Education & Teaching

K12
Higher Education
STEM
Teacher Professional Development
Course Development
Online Education
Pedagogy
Social-emotional Learning (SEL)
Instructional Design
Homeschooling
Special Education
Adult Education
Course Design
Educational Technology
Curriculum Development
Next Generation Science Standards
Student-Centered Learning
Student Engagement
Classroom Management
Early Childhood Education
View all Education & Teaching

Social Sciences

Sociology
Economics
Psychology
Anthropology
Political Science
Law
Urban Planning
Human Rights
Sustainability
Governance
Archaeology
Social Work
Structural Equation Modeling
Cultural Studies
Community Engagement
Philanthropy
Behavioral Science
Media Studies
Global Development
Social Development
View all Social Sciences

Art & Design

Music
Digital Media
Visual Arts
Design & Creativity
Photography
Art Therapy
Art Composition
Character Design
Fashion Design
Golden Ratio
Geometric Patterns
Copic Markers
Jewelry Design
Animal Illustration
Anime Drawing
Street Art
Observational Drawing
Greeting Cards
Clay Modeling
Epoxy Resin
View all Art & Design

Artificial Intelligence

Computer Vision
Natural Language Processing (NLP)
Neural Networks
Autonomous Vehicles
Chatbot
IBM Watson
Generative AI
Intelligent Systems
Genetic Algorithms
Intelligence
Heuristics
Ontology
Collective Intelligence
Autonomous Agents
Constraint Programming
AI Ethics
Semantics
Computational Linguistics
Computational Creativity
Evolutionary Algorithms
View all Artificial Intelligence

Data Science

Bioinformatics
Big Data
Data Mining
Data Analysis
Data Visualization
Jupyter Notebooks
Process Mining
Stata
Text Mining
Social Network Analysis
Computational Analysis
Data Collection
Information Retrieval
Data Processing
Data Wrangling
Data Extraction
Data Manipulation
Network Analysis
Data Preparation
Big Data Analytics
View all Data Science

Programming

Mobile Development
Web Development
Databases
Game Development
Programming Languages
Software Development
Cloud Computing
Domain-Specific Languages (DSL)
Hardware Description Languages (HDL)
Aspect-oriented programming
Object-oriented programming
Visual Programming
Competitive Programming
Database Programming
Generic Programming
Leetcode
GNU Toolchain
Windsurf
Vibe Coding
View all Programming

Personal Development

Communication Skills
Career Development
Self Improvement
Presentation Skills
Resilience
Self-Control
Gratitude
Growth Mindset
Self-Assessment
Survival Skills
Sleep Improvement
Career Planning
Empowerment
Generosity
Courage
Humility
Dog Training
Passion
Life Coaching
Positive thinking
View all Personal Development

Information Security (InfoSec)

Cybersecurity
Ethical Hacking
Digital Forensics
Reverse Engineering
Malware Analysis
OSINT (Open Source Intelligence)
Threat Intelligence
Red Team
Blue Team
View all Information Security (InfoSec)

Inside the Coursera-Udemy Deal: Three Bids, Two Years and a Rival Suitor

Buried in Coursera’s 300-page prospectus: two failed merger attempts, competing bidders, a rogue shareholder, and a combined market cap that shrank from $3.8 billion to $1.7 billion.

Dhawal Shah Apr 07, 2026

Latest

6 Best CompTIA Security+ Courses and Certification Prep in 2026
10 Best ASP.NET Core Courses for 2026 (Free & Paid)
13 Best Julia Programming Courses for 2026 (Free & Paid)
14 Best Clojure Courses and Tutorials for 2026 (Free & Paid)
The Best Apps for Learning English in China

Write for The Report

Visit The Report

600 Free Google Certifications
Trending

Most common

Popular subjects

Computer Science
52,428 courses
Psychology
3,092 courses
Cybersecurity
26,028 courses

Popular courses

Greening the Economy: Sustainable Cities
Lund University
Discover Dentistry
The University of Sheffield
Academic Writing
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

Institutions
Cardboard World

Free Online

Cardboard World Courses

187 courses

Showing 187 courses

Sort by Relevancy

Filter by

Filters

Level
1. Beginner (186)
2. Intermediate (1)
Duration
1. < 30 mins (36)
2. 30 - 60 mins (148)
3. 1 - 2 hours (1)
4. 2 - 5 hours (1)
5. 10+ hours (1)
Subject
1. Art & Design (38)
Language
1. English (187)

Build a Magical Unicorn Rainbow House with Pool and Kitchen - DIY Miniature House

Discover how to craft an enchanting miniature unicorn house with rainbow pool and kitchen using simple cardboard and recycled materials in this magical DIY tutorial.
- YouTube
- 23 minutes
- Self-Paced
- Free Video
DIY Pink Family House with Car Garage, Ball Pit and Bunny Bedroom - Miniature House Craft

Craft a charming pink miniature family house from cardboard featuring a car garage, ball pit, and bunny bedroom using simple DIY techniques and recycled materials.
- YouTube
- 35 minutes
- Self-Paced
- Free Video
Build a Magical Princess Castle for Barbie with Princess Bedroom and Furniture - DIY Miniature House

Discover how to craft an enchanting Barbie princess castle using cardboard, complete with rainbow bedroom, glitter stairs, and miniature furniture for magical DIY fun.
- YouTube
- 33 minutes
- Self-Paced
- Free Video
Make a Cardboard Hello Kitty Mini House with Pink Furniture and Sweet Details - DIY Miniature House

Craft an adorable Hello Kitty miniature house from cardboard with pink furniture, glitter bedroom, and bubble bath details in this hands-on DIY tutorial.
- YouTube
- 26 minutes
- Self-Paced
- Free Video
Make a Bunny Mini House with Pink Cardboard Furniture and Cute Bathroom - DIY Miniature Room

Discover how to craft an adorable bunny mini house using pink cardboard, complete with cute furniture and a charming bathroom in this hands-on DIY miniature tutorial.
- YouTube
- 21 minutes
- Self-Paced
- Free Video
Build the Cutest Watermelon House With Pool and Rainbow Bridge - DIY Miniature House

Discover how to craft an adorable watermelon-themed miniature house complete with pool and rainbow bridge using cardboard and recycled materials in this creative DIY tutorial.
- YouTube
- 34 minutes
- Self-Paced
- Free Video
Make a Cardboard Hello Kitty House with Furniture and Food Setup - DIY Miniature House

Discover how to craft an adorable Hello Kitty miniature house using cardboard, complete with pink kitchen, tiny bathtub, furniture, and food setup in this creative DIY tutorial.
- YouTube
- 26 minutes
- Self-Paced
- Free Video
DIY Purple Luxury Castle Mini House with Rainbow Slide from Cardboard

Discover how to craft a stunning purple luxury castle miniature with rainbow slide using cardboard, featuring glittering details and handmade fairy tale interiors.
- YouTube
- 21 minutes
- Self-Paced
- Free Video
Build Purple Miniature Dollhouse Castle with Rainbow Stairs for Princess - DIY Miniature House

Discover how to craft a magical purple dollhouse castle with rainbow stairs using cardboard and recycled materials in this enchanting DIY tutorial.
- YouTube
- 21 minutes
- Self-Paced
- Free Video
Make a Pink Hello Kitty Mini House with Bathtub and Rainbow Stairs - DIY Miniature House

Discover how to craft an adorable pink Hello Kitty miniature house featuring a sparkly bathtub, rainbow stairs, and sweet tiny furniture using cardboard and recycled materials.
- YouTube
- 33 minutes
- Self-Paced
- Free Video
Build a Magical Unicorn Mini House with Rainbow Pool and Bedroom - DIY Miniature House

Discover how to craft an enchanting unicorn miniature house featuring a rainbow pool, glittery bedroom, and adorable kitchen using cardboard and recycled materials.
- YouTube
- 34 minutes
- Self-Paced
- Free Video
Create a Miniature Bunny Home with Cute Carrot Decor and Fish Tank - DIY Cardboard House

Discover how to craft an adorable miniature bunny house from cardboard featuring carrot-themed furniture, rainbow stairs, and a tiny aquarium in this creative DIY tutorial.
- YouTube
- 30 minutes
- Self-Paced
- Free Video
DIY Rainbow Unicorn Mini House with Bedroom, Kitchen and Bathroom - Miniature Cardboard House

Discover how to craft an enchanting rainbow unicorn miniature house complete with bedroom, kitchen, and bathroom using cardboard and recycled materials in this colorful DIY tutorial.
- YouTube
- 22 minutes
- Self-Paced
- Free Video
DIY Barbie Dollhouse with Bedroom, Living Room and Pool - Build Miniature House

Discover how to craft a stunning Barbie dollhouse from cardboard featuring bedroom, living room, pool & slide using recycled materials in this creative DIY tutorial.
- YouTube
- 31 minutes
- Self-Paced
- Free Video
DIY Pink Bunny Dollhouse with Bunk Bed from Cardboard - Miniature House Tutorial

Discover how to craft an adorable pink bunny-themed dollhouse complete with bunk bed using simple cardboard materials in this step-by-step miniature house tutorial.
- YouTube
- 21 minutes
- Self-Paced
- Free Video

Browse by subject

Computer Science
Psychology
Cybersecurity
Health
Law
Accounting
Web Development

Browse by provider

Coursera
Udacity
edX
Noble Desktop
Simplilearn
CodeSignal
Boot.dev

Browse by university

Harvard
MIT
Georgia Tech
University of Michigan
Purdue University
Duke University
IIT Madras

Browse by institution

Google
Microsoft
IBM
Amazon
Linux Foundation
British Council
Salesforce

Best Online Courses of All Time
Best Online Courses of the Year
Most Popular Courses of All Time
Most Popular Courses of the Year
100 Top FREE Coursera Courses of All Time
Best Courses Guides
Free Printable Study Calendar

The Report by Class Central RSS Feed

The "New Normal" that Wasn't
DDoS Attack on Class Central
2000+ Online Degrees in India
Harvard's CS50 Free Certificate Guide
How Open University Works

Free Certificates & Courses

450+ Free Google Certificates
10000+ Free Courses from Tech Giants
300+ Free Coursera Courses
Ivy League Online Courses
200+ Free Writing Online Courses

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.