ACD/ChemSketch Freeware

A free comprehensive chemical drawing package.

ACD/ChemSketch Freeware is a drawing package that allows you to draw chemical structures including organics, organometallics, polymers, and Markush structures. It also includes features such as calculation of molecular properties (e.g., molecular weight, density, molar refractivity etc.), 2D and 3D structure cleaning and viewing, functionality for naming structures (fewer than 50 atoms and 3 rings), and prediction of logP. The freeware version of ChemSketch does not include all of the functionality of the commercial version - see a brief overview of the differences. Visit ACD/ChemSketch to learn more about the commercial version.

Functionality Commercial Freeware
Advanced drawing tools checkmark checkmark
Identify tautomers checkmark checkmark
Name structures with up to 50 heavy atoms checkmark checkmark
3D viewer checkmark checkmark
Export to Adobe PDF checkmark checkmark
ACD/Dictionary checkmark
Search files on your computer by structure checkmark
ACD/Labs extension for ChemDraw checkmark
Technical Support checkmark

As an Educational Tool

ACD/Labs software aids in teaching key chemistry concepts to high school, undergraduate, and graduate chemistry students. In addition, students benefit from exposure in the learning environment to the same tools they will encounter in the workforce.

  • Our Academic Site Licensing Program is an affordable way for qualifying academic institutions to make the commercial versions of ACD/ChemSketch, ACD/ChemFolder, and ACD/I-Lab available to their students and faculty.
  • Free access to site licenses of ACD/ChemSketch Freeware are available.
  • ACD/I-Lab offers pay-per-use access to many of our expert analytical, nomenclature, and physicochemical prediction tools.

Linux users can download a compatible version of ACD/ChemSketch Freeware that can be run with Code Weavers' CrossOver Office.

We do not provide technical support for our freeware products.
ACD/ChemSketch Freeware* is for home and educational use ONLY.

MAC users please read more information here.

*ACD/ChemSketch Freeware is not compatible with earlier versions of freeware or commercial products.