1. Getting started

Open up MoleculeSketch. On the upper part, you will find a set of drawing tools. Under the drawing area you will find a settings bar.

Explanation of the toolbar items

Explanation of the bottom settings bar items

The main menu bar

Setting preferences

Copy Paste




2. Drawing a molecule

Drawing atoms and bonds

Adding ring systems

Adding chains

Editing atoms, adding functional groups

Editing bonds

Combining molecules

Calculate mass and formula

3. Other drawing elements and text boxes

Reaction arrows

Special symbols (plus sign, charge symbols, radical symbols)


Drawing elements (circles, lines)

Text box

Change drawing attributes like color, linewidth and line type

4. Manipulations

Select, move and scale


Group items

Arrange objects and justify bonds

Horizontal and vertical mirroring

Deleting and wiping