Interactive chemistry education
Explore chemistry in 3D
Draw molecular structures, visualize compounds in three dimensions, and import data directly from PubChem. All in the browser.
2D Molecular Editor
Draw structures with Kekule.js, a professional-grade chemical editor that runs entirely in the browser.
Interactive 3D Viewer
Transform your structures into 3D representations with 3Dmol.js. Rotate, zoom, and change rendering style.
PubChem Integration
Search any compound by name and load its 3D geometry directly from NCBI's database.
From the blog
Recent articles
History of Molecular Simulators: From Paper to Screen
From the first ball-and-stick models to 3D visualizers in the browser, the evolution of molecular modeling tools has transformed the way we understand chemistry.
Oxidation States: A Complete Guide
Oxidation states are an essential tool for balancing redox equations and understanding chemical reactivity.
Partner sites
Recommended resources
Chemistry in Spanish — theory, nomenclature and exercises.
Interactive chemistry tools: tables, calculators and more.
NCBI public chemical compound database.
Interactive periodic table from the Royal Society of Chemistry.