Valence

Free demo! A powerful 3D tool to explore the creation of new molecules and to infer their behavior and synthesis for chemistry!

Useful for anyone interested in chemistry who wants to learn more about molecules and how they behave, or at least how they're predicted to behave if the molecule itself does not yet exist.

*Fullscreen recommended!*

Valence also provides a wide database of example molecules that you can select from, to visually inspect and understand their structure. Very useful for a chemistry teacher who wants to render molecules for a fun and interactive teaching experience!

Valence features the ability to construct your own molecules from scratch, and the ability to optimize the structure for the charge distribution. You can even create molecules using different ions. Below, you can see how it can reverse engineer how a molecule may be manufactured through several chemical reactions, in this case for vanillin it shows 2 steps:

Use it for free here in the browser, or download the upgraded version today for just $4! The upgraded version unlocks the rest of the periodic table!