ChemViz3D
A browser-based 3D molecular animation engine built for chemistry teaching
Recommended for PC & widescreen for the best 3D experience
Start with a question
Explore reactions and molecular shapes in 3D
Choose a question, read the explanation, and open the animation to rotate, pause and compare what you see.
SN2 substitution
How do bond formation and bond breaking happen in one step?
Read explanation Watch animationMethane combustion
Where do the atoms go when methane burns in oxygen?
Read explanation Watch animationEsterification
How do a carboxylic acid and an alcohol form an ester and water?
Read explanation Watch animationCO₂: linear geometry
Why is carbon dioxide linear even though it has double bonds?
Read explanation Watch animationCH₄: tetrahedral geometry
Why do methane’s four bonds point toward a tetrahedron?
Read explanation Watch animationNH₃: trigonal pyramidal geometry
How does a lone pair help explain ammonia’s shape?
Read explanation Watch animationH₂O: bent geometry
Why is water bent rather than linear?
Read explanation Watch animationAcid–base neutralization
What does H⁺ + OH⁻ → H₂O tell us about neutralization?
Read explanation Watch animationWater electrolysis
Why does splitting water produce H₂ and O₂ in a 2:1 ratio?
Read explanation Watch animation
These are teaching visualizations of selected reactions and structures. They do not predict whether an unfamiliar reaction will occur, its rate or its yield.
Core features
Bring chemical reactions to life in the browser
Build, play, and share 3D reaction animations right from a webpage. No software installation, and students can rotate, pause, and clearly inspect every atom and chemical bond themselves.
Zero install, open and use
Share a link and the whole class can view the same 3D animation in the browser. No software installs or environment setup, ready whenever class needs it.
Students explore, not just watch
A real-time 3D scene lets everyone drag to rotate, pause on a frame, and zoom in to inspect the spatial relationship between bonds and atoms.
From modeling to class, in one flow
Use the built-in animation editor, then export the result to a local file. The same animation can support lesson prep, live teaching, and review after class.
Interactive 3D preview
Suzuki cross-coupling reaction
Drag to rotate · open the full player
Open full playerFrequently Asked Questions
Open a browser and bring chemical reactions to life.
Start free