Molecular editors and visulization tools

Molecular editors are commonly used tools to draw and manipulate chemical structures. These tools also provides a number of facilities such as geometry optimization, structure visualization, energy minimization.

List of freely available molecular editors

Softwares Description
PubChem Sketcher It is web-based tool for moleucle sketching which is integrated in PubChem.
ChemSketchIt is chemical drawing package that allows users to draw chemical structures including organics, organometallics, polymers, and Markush structures.
JChemPaintIt is java-based software for drawing, editing and viewing 2D chemical structure.
BKchemBKchem is python based 2D molecule editor. It allows users to draw, edit, visualize the molecules and provide various options to the users.
XDrawChemIt is a two-dimensional molecule drawing program.
MedChem DesignerIt is used for drawing molecules and integration with ADMET property.
JMEIt is a java based software for draw, edit, and view molecules.

Commercial available molecular editors

Softwares Description
ChemDrawIt is chemical structure drawing tool that is developed by CambridgeSoft group. It is compatible for Windows and Mac OS X system. ChemDraw is a part of ChemOffice suite and it can read, import and export CDX, MOL, SDF, and SKC chemical file formats.
MarvinSketchLinux and MAC OS based commercial and freeware molecule editor, allows users to quickly draw molecules through basic functions on the GUI and advanced functionalities such as sprout drawing, file format changes, visulization etc.
Chemis3DIt is Java Applet based Molecular Viewer and editor. It support PDB, MDL, MOL etc file format.
AmiraIt is advanced chemoinformatics tool used for molecule visulization, change the geometry and topology of a Molecule. It support Windows, Mac OS X and Linux operating system.
AvogadroAvogadro is a molecule editor and visualizer tool used in chemoinformatics. It compatible with Windows, Linux, and Mac OS X.
GChemPaintIt is 2D chemical structures editor. It compatible for Windows and Linux system.
ZodiacZodiac is an advanced molecular editor for molecular modelling and computer aided drug design, it also used in energy minimisation.
SPARTANIt is advances tool used in molecule editor and visulization. It is available for Windows, Macintosh, and Linux operating system. It also includes various functions such as Molecular mechanics calculations, energy minimization, geometry optimization etc.