What Is Ketcher, Chemical Structure Editor in JavaScript?

Ketcher is an open-source web-based chemical structure editor written in JavaScript. It can be used as an integrated online Web tool to draw chemical structures and reactions.

Main features of Ketcher are:

• Fast and convenient editing - Ketcher is easy to use and fast with features like: Lasso and Rectangle selection tools, A variety of hotkeys, Copy/Paste for the canvas objects.
• Atoms and Bonds - Ketcher supports basic properties and query features, adding aliases and Generic group usage.
• Stereochemistry - Ketcher provides complete stereochemistry support during the editing, loading, and saving of chemical structures.
• Reactions - Full-featured reaction support including reacting centers, atom flags and AAM.
• S-groups - All major S-group types are supported including generic, SRU polymers, multiple groups, superatoms and data S-groups.
• R-groups - R-site and R-fragment assignment is supported, as well as attachment point specification and R-logic.
• Template library (including custom and user’s templates) and Functional groups support.

For more information, visit Ketcher Website.

⇒ Download and Install Ketcher in Standalone Mode

⇐ Introduction to Ketcher

⇑ Introduction to Ketcher

⇑⇑ Ketcher - Chemical Structure Editor