Explore Chemistry, One Simulation at a Time
Interactive simulations designed for high school and AP chemistry students. Visualize concepts, build intuition, and make chemistry click.
Electron Configuration Explorer
AP ChemAcid-Base Titration
HS ChemGas Laws Simulator
HS ChemFeatured Simulations
Dive into our growing library of interactive chemistry tools.
Electron Configuration Explorer
Visualize how electrons fill orbitals using the Aufbau principle, Hund's rule, and Pauli exclusion.
Acid-Base Titration
Perform virtual titrations and watch pH curves form in real time as you add titrant drop by drop.
Gas Laws Simulator
Manipulate pressure, volume, and temperature to see Boyle's, Charles's, and Gay-Lussac's laws in action.
Periodic Trends Visualizer
Explore atomic radius, ionization energy, and electronegativity trends across the periodic table.
Molecular Geometry Builder
Build molecules using VSEPR theory and predict 3D shapes from electron pair geometry.
Equilibrium Shift Simulator
Apply Le Chatelier's principle by changing concentration, temperature, and pressure in a live reaction.
How Chemsimu Works
Teacher designs simulations
Each simulation is carefully crafted to align with HS and AP chemistry curriculum standards.
Students browse freely
No login required. Open the gallery and start exploring whenever curiosity strikes.
Learn by exploring
Interact with concepts hands-on. See how variables change outcomes in real time.
Ready to explore?
Jump into the simulation gallery and start discovering chemistry in a whole new way.
Open the Gallery