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ChemSketch Freeware

Free Software for Drawing Chemical Structures

ChemSketch is our popular structure drawing software with over 2 million downloads worldwide.

Free Download for Academic and Personal Use

Download for Academic and Personal Use

Working for a Commercial Organization?

Use of ChemSketch freeware is explicitly prohibited in a commercial organization.Purchase the full version of ChemSketch here

With ChemSketch You Can…

  • Draw chemical structures, including organics, organometallics, polymers, and Markush structures
  • Calculate molecular properties (molecular weight, density, molar refractivity, and more)
  • Clean up your structure and view it in 2D and 3D

Download ChemSketch Freeware

Deployment/Integration Options

Technical Requirements

ChemSketch is developed exclusively for Windows 64-bit operating systems.

Freeware products are provided as-is without technical support. Please visit our FAQ for answers to your questions.


Do You Use a Mac?

Learn how to configure a virtual machine to use ChemSketch on your computer.

Additional Downloads

Get more information about your structure with the EPA iCSS add-on

Access the EPA’s iCSS (Interactive Chemical Safety for Sustainability) Chemistry Dashboard via ChemSketch for additional physicochemical properties, toxicity endpoints, and more information about your drawn structure.

Download the add-on here.

Free Software for Drawing Chemical Structures

ChemSketch Freeware is offered at no cost to academic institutions, or for personal use for your at-home studies.

Download ChemSketch Freeware