Age 6-above
CK-12
Interactive STEM textbooks, simulations and practice sets from a non-profit dedicated to low-cost K-12 education.
Open resourceFeatured Platforms
Full learning ecosystems worth bookmarking on their own — courses, virtual labs and open textbooks.
Teachers & Students
LibreTexts
A non-profit open-education platform for creating, customizing and sharing accessible, interactive textbooks and homework tools.
Open resourcePhysics
Simulations, circuits and concept explanations for mechanics through electromagnetism.
CBSE · ISC · State Boards
The Physics Classroom
Tutorials, animations and quizzes covering the full high-school physics syllabus.
Open resourceMechanics
MyPhysicsLab
Live physics simulations and experiments students can tweak and re-run.
Open resourceElectricity & Magnetism
Falstad Physics Simulations
Interactive circuit and physics simulators students can build and probe live.
Open resourceRevision
HyperPhysics
Dense, linked concept maps — great for quick revision before a test.
Open resourceJEE & Higher Secondary
NPTEL
IIT-taught online courses, useful for stretching stronger students toward JEE-level depth.
Open resourceChemistry
Molecular visualization, reference material and self-study explanations.
Teachers
Royal Society of Chemistry
A deep library of ready-to-use educational chemistry resources.
Open resourceOrganic Chemistry
MolView
Build and rotate 3D molecules right in the browser.
Open resourcePeriodic Table & Properties
ptable
Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds.
Open resourceSelf-study
Chemguide
Clear, self-paced explanations across organic and physical chemistry.
Open resource
Teachers & Students
ChemCollective
A virtual chemistry lab that links computation to authentic lab practice — students mix hundreds of standard reagents just like a real bench.
Open resourceBiology
Anatomy explorers, virtual labs and genetics primers.
Biology
InnerBody
A detailed, clickable 3D explorer of human body systems.
Open resourceBiology
LabXchange
Harvard-built virtual labs for hands-on biology without the equipment budget.
Open resourceGenetics
Learn.Genetics
Friendly, visual explainers on DNA and genetics from the University of Utah.
Open resourceCBSE Practical
OLabs
Virtual practical labs mapped closely to the CBSE curriculum.
Open resource
Medicos & Biology
Anatomography
Free 3D human anatomy models from Japan — .obj files are downloadable for closer study or classroom demos.
Open resource
Medicos & Biology
Open Anatomy Project
Free digital anatomy atlases from Brigham and Women's Hospital, Boston — built to make accurate anatomical knowledge available to everyone.
Open resourceMath
Graphing tools, visualizations and problem-solving practice.
Algebra & Calculus
Desmos
The graphing calculator every student ends up loving — free and instant.
Open resourceVisualization
Wolfram Demonstrations
Thousands of interactive math models to explore concepts hands-on.
Open resourceBasics
Math is Fun
Plain-language explanations for building up the fundamentals.
Open resourceConcept Building
Brilliant
Bite-sized, interactive problem-solving to build real intuition.
Open resourceEnglish Language & Literature
Listening, grammar, classic texts and vocabulary — all free to read.
Daily English
BBC Learning English
Listening and speaking practice released daily, straight from the BBC.
Open resourceStudents
Cambridge English
Grammar reference and exam-prep material from Cambridge.
Open resourceLiterature
Project Gutenberg
Thousands of classic books, free to read or download in full.
Open resourceLiterature
Poetry Foundation
A vast, searchable archive of poems and poet biographies.
Open resourceVocabulary
Merriam-Webster Learner's Dictionary
A dictionary written specifically for learners, with simple definitions.
Open resourceNo resources match “”. Try another search.
Social Science
Geography, economics, history and civics — mapped, charted and archived.
Google Earth Education
Interactive maps and guided tours for teaching geography visually.
Open resourceSolar System Scope
Solar System Scope is a model of Solar System, Night sky and Outer Space in real time, with accurate positions of objects and lots of interesting facts.
Open resourceGapminder
Global statistics brought to life through animated, explorable charts.
Open resourceWorld History Encyclopedia
Well-sourced articles spanning civilizations and eras.
Open resourceoldmapsonline
OldMapsOnline.org helps users find digitized historical maps from many libraries, archives, and collections.
Open resourceArcGIS Living Atlas of the World
Esri is the global market leader in geographic information system (GIS) software, location intelligence, and mapping.
Open resource