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Free interactive chemistry

See Chemistry.Touch Chemistry.Understand Chemistry.

Enter chemistry from atomic structure to exam-level reactions through modern SVG depth, optional WebGL and scientific models you can move by hand.

Explore ChemistryOpen Molecule StudioNEET & JEE Map

No sign-in required for public simulations.

Interactive SVG · 3D depth

Atom scale

Structure begins with quantized electrons.

—live models
118elements
77/77exam units

Choose Atom, Molecule or Reaction. Drag, zoom and pause; motion and graphics respect your settings.

Built for open learning

A chemistry platform measured by what students can open

Counts come from the bundled public catalogue and reviewed reference datasets, so the page remains truthful when the API is offline.

Live simulations
—
Runnable public models
Elements
118
Complete periodic table
Locale profiles
31
With English fallback
Learning modes
3
Observe · Explore · Free Lab
Live

Explore the Chemistry Universe

Nine connected worlds share one language: particles, energy, structure, evidence and change. Begin anywhere and follow the links between them.

Open the universe map
Interactive knowledge graph
The connected YogiChemX learning universeSelect atoms, bonds, molecules, reactions, laboratory work or evidence to open that learning world.Atom — structureAtomstructureBond — sharingBondsharingMolecule — shapeMoleculeshapeReaction — changeReactionchangeLab — testLabtestEvidence — explainEvidenceexplain
AI-era visual learning
LiveFeatured interactive simulation

Why Is Water Bent?

Rotate H₂O and reveal the electron domains that turn a tetrahedral electron arrangement into a bent 104.5° molecule with a net dipole.

104.5°OHH

Drag to rotate · wheel to zoom

Reveal scientific layers

Electron geometry
Tetrahedral
Molecular geometry
Bent
Electron domains
4
Hybridization model
sp³
Bond angle
104.5°
Polarity
Polar

Two bonding domains and two lone-pair domains arrange approximately tetrahedrally. Lone-pair repulsions compress the H–O–H angle below 109.5°, and the two O–H bond dipoles do not cancel.

A learning loop

How YogiChemX works

A scientific model is useful when a learner can change a variable, observe the result and explain why it changed.

  1. 01

    Choose a concept

    Search by formula, substance, law or curriculum idea.

  2. 02

    Touch the model

    Drag, rotate, zoom, select, measure or move a controlled variable.

  3. 03

    Read the evidence

    Live calculations and accessible prose update with the visual.

  4. 04

    Connect and test

    Relate the model to laboratory practice and a quick challenge.

Nine connected worlds

Chemistry Worlds

Each area has a distinct wayfinding color, while labels, icons and status text keep meaning independent of color.

OHH

Molecule Inspector preview

Water H₂O

One structure, connected explanations. Drag the molecule, then open any property in Molecule Studio.

Molar mass
18.015 g mol⁻¹
Geometry
Bent
Bond angle
104.5°
Hybridization model
sp³ on oxygen
Polarity
Polar · dipoles reinforce
Valence electrons
8 electrons
Open full inspector

Available now

Featured live modules

Selected from the real published catalogue; if a module is unpublished it disappears from this row.

View all

More than a visual

A complete learning experience

Move from a beginner explanation to a detailed scientific model without leaving the experiment.

  1. 1

    Understand

  2. 2

    Explore

  3. 3

    Experiment

  4. 4

    Observe

  5. 5

    Explain

  6. 6

    Apply

  7. 7

    Test

Simple modeDetailed modeFoundationSchoolUndergraduateReduced motionLite graphics

Open any simulation and it will appear here on this device—no account required.

Scientific trust

Models disclose what they simplify

Every published simulation is expected to expose its assumptions, accessible result, real-world connection and reference path.

Review methodScientific sourcesReport an error

Measured data

Published values remain tied to a source and conditions.

Calculated result

Equations are implemented in shared, tested chemistry engines.

Educational Model

Simplifications are named instead of presented as complete reality.

Review status

Live, Building, Coming next and Planned are visibly different.

Building

Chemistry in the learner’s language

The platform includes 31 locale profiles, RTL layout support and separate interface/explanation language settings. English remains the honest fallback where reviewed translation is incomplete.

Language settings
  • EnglishEnglish
  • தமிழ்Tamil
  • हिन्दीHindi
  • తెలుగుTelugu
  • മലയാളംMalayalam
  • ಕನ್ನಡKannada
  • বাংলাBengali
  • मराठीMarathi
  • ગુજરાતીGujarati
  • ਪੰਜਾਬੀPunjabi
  • اردوUrdu
  • العربيةArabic

People behind the idea

Contributors

Designations are shown exactly as supplied and are never inflated.

Contributor policy

Idea and educational vision

Kalviyogi

The vision for a living, accessible chemistry learning world.

Academic guidance

R. Hariharan

Chemistry Professor, Pachaiyappa’s College.

Research contribution

Narendranath A

Research Scholar in Chemistry.

Transparent roadmap

Development status

Public chemistry remains free and functional while new layers are developed. A status label describes software availability, not scientific importance.

Read changelog
Live

Core platform

55 published models, 118 elements and offline catalogue fallback.

Building

V2 experience

Premium homepage, molecule intelligence and learning tools.

Coming next

Public review cards

Per-module versions, reviewers and source panels.

Planned

Future catalogue

Only becomes Live when a real renderer and review record exist.