The free Molecule Viewer
ChemScope lets you draw 2D chemical structures, view molecules in 3D and look up more than 900 compounds. It is built for chemistry students, teachers and curious learners who want to see
- Free to use
- No signup
- Nothing to install
- Works in any modern browser
Illustration. Open the tool for the real thing.
What is the Molecule Viewer?
ChemScope lets you draw 2D chemical structures, view molecules in 3D and look up more than 900 compounds. It is built for chemistry students, teachers and curious learners who want to see how atoms bond and how molecules are shaped, without installing software.
Search a compound by name to see its formula, molecular weight and structure, or build your own molecule atom by atom. Rotate the 3D model to understand geometry such as bent, tetrahedral and trigonal planar shapes.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Place atoms and bonds on the canvas to build organic and inorganic molecules.
Rotate and zoom to understand bond angles and molecular geometry.
Look up formulas, molar mass and structures by name.
Practise Lewis structures, VSEPR shapes and functional groups.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
How it compares
A plain look at this tool next to the usual alternative.
| This study tool | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
Questions people ask
Is ChemScope free?
Yes, it is free to use with no signup.
Can I view molecules in 3D?
Yes. Switch to the 3D view to rotate and zoom any structure.
What is VSEPR theory?
VSEPR predicts molecular shape from the repulsion between electron pairs around the central atom.
Can I calculate molecular weight?
Yes. The formula and molecular weight are shown for the structure you build or search.
How do I use the Molecule Viewer?
1. Search a compound or start a new drawing. 2. Add atoms and bonds to build your structure. 3. Switch to the 3D view to rotate the molecule. 4. Check the formula and molecular weight.
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Try the Molecule Viewer now
ChemScope lets you draw 2D chemical structures, view molecules in 3D and look up more. Free to use.
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