# Molecule editor

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> Markdown URL: https://mediated.wiki/source/Molecule_editor.md
> Source: https://en.wikipedia.org/wiki/Molecule_editor
> Source revision: 1353273054
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

{{Short description|Program for simulating chemical structures}}
A '''molecule editor''' is a [computer program](/source/computer_program) for creating and modifying representations of [chemical structure](/source/chemical_structure)s.<!-- Only for programs/packages with their own article -->

Molecule editors can manipulate chemical structure representations in either a simulated [two-dimensional space](/source/Plane_(mathematics)) or [three-dimensional space](/source/three-dimensional_space), via [2D computer graphics](/source/2D_computer_graphics) or [3D computer graphics](/source/3D_computer_graphics), respectively. Two-dimensional output is used as illustrations or to query [chemical database](/source/chemical_database)s. Three-dimensional output is used to build molecular models, usually as part of [molecular modelling](/source/molecular_modelling) software packages.

Database molecular editors such as Leatherface,<ref>{{cite book|doi=10.1002/3527603743.ch11|chapter=Structure Modification in Chemical Databases|title=Chemoinformatics in Drug Discovery|pages=[https://archive.org/details/isbn_9783527307531_0/page/271 271–285]|series=Methods and Principles in Medicinal Chemistry|year=2005|last1=Kenny|first1=Peter W.|last2=Sadowski|first2=Jens|isbn=9783527307531|url=https://archive.org/details/isbn_9783527307531_0/page/271}}</ref> RECAP,<ref>{{cite journal|doi=10.1021/ci970429i|pmid=9611787|title=RECAP-Retrosynthetic Combinatorial Analysis Procedure: A Powerful New Technique for Identifying Privileged Molecular Fragments with Useful Applications in Combinatorial Chemistry|journal=Journal of Chemical Information and Computer Sciences|volume=38|issue=3|pages=511–522|year=1998|last1=Lewell|first1=Xiao Qing|last2=Judd|first2=Duncan B.|last3=Watson|first3=Stephen P.|last4=Hann|first4=Michael M.}}</ref> and Molecule Slicer<ref>{{cite journal|doi=10.1021/jm030267j|pmid=14695836|title=Characteristic Physical Properties and Structural Fragments of Marketed Oral Drugs|journal=Journal of Medicinal Chemistry|volume=47|pages=224–232|year=2004|last1=Vieth|first1=Michal|last2=Siegel|first2=Miles G.|last3=Higgs|first3=Richard E.|last4=Watson|first4=Ian A.|last5=Robertson|first5=Daniel H.|last6=Savin|first6=Kenneth A.|last7=Durst|first7=Gregory L.|last8=Hipskind|first8=Philip A.|issue=1}}</ref> allow large numbers of molecules to be modified automatically according to rules such as 'deprotonate carboxylic acids' or 'break exocyclic bonds' that can be specified by a user.

Molecule editors typically support reading and writing at least one [file format](/source/file_format) or line notation. Examples of each include [Molfile](/source/Molfile) and [simplified molecular input line entry specification](/source/simplified_molecular_input_line_entry_specification) (SMILES), respectively.

Files generated by molecule editors can be displayed by [molecular graphics](/source/molecular_graphics) tools.

== Standalone programs ==

=== 2D structure editing ===

{| class="wikitable sortable"
|-
! Program !! Developer(s) !! License !! Platforms !! Info
|-
| [ACD/ChemSketch](/source/ACD%2FChemSketch) || [ACD/Labs](/source/Advanced_Chemistry_Development) || {{proprietary}} || Windows || A chemically intelligent drawing interface allowing creation of 2D structures for organics, organometallics, polymers, and Markush structures. Freeware version available.
|-
| [BIOVIA Draw](/source/BIOVIA_Draw) || [Dassault Systèmes](/source/Dassault_Syst%C3%A8mes) || {{proprietary}} || Windows || Successor of [ISIS/Draw](/source/ISIS%2FDraw).
|-
| [ChemDraw](/source/ChemDraw) || Revvity Signals || {{proprietary}} || Windows, macOS || Primarily for editing 2D chemical structures and reactions
|-
| [ChemWindow](/source/ChemWindow) || [Wiley](/source/Wiley_(publisher)) || {{proprietary}} || Windows || Freeware for academic research and teaching; part of the KnowItAll software environment
|-
| [JChemPaint](/source/JChemPaint) || JChemPaint Developers || {{LGPL-lic}} || [Cross-platform](/source/Cross-platform) || A 2D structural formula editor written in [Java](/source/Java_(programming_language))
|-
| [XDrawChem](/source/XDrawChem) || XDrawChem developers || {{GPL-lic}} || Windows, macOS, Linux || A 2D chemical structure drawing tool based on [OpenBabel](/source/OpenBabel)
|}

=== 3D structure editing ===
{| class="wikitable sortable"
|-
! Program !! Developer(s) !! License !! Platforms !! Info
!Last Release
|-
| [Amira (software)](/source/Amira_(software)) || [Visage Imaging](/source/Visage_Imaging)<br>[Zuse Institute Berlin](/source/Zuse_Institute_Berlin) || {{proprietary}} || Windows, macOS, Linux || Includes 3D visualization tools. Trial version available.
|
|-
| [Ascalaph Designer](/source/Ascalaph_Designer) || [Agile Molecule](/source/Agile_Molecule) || {{GPL-lic}} || Windows, Linux || A freeware 3D molecule editor.
| {{wikidata|qualifier|preferred|Q4034436|P348|P548=Q2804309|P577}}
|-
| [Avogadro](/source/Avogadro_(software)) || Avogadro project team || {{GPL-lic}} || Windows, macOS, Linux || A 3D molecule editor and visualizer.
| {{wikidata|qualifier|preferred|single|edit|Q851800|P348|P548=Q2804309|P577}}
|-
| Deneb || AtelGraphics || {{proprietary}} || Windows, Linux || GUI for simulation packages, including 3D editing.
|
|-
| [Gabedit](/source/Gabedit) || Abdulrahman Allouche || {{BSD-lic}} || Windows, macOS, Linux || A 3D molecule editor with visualization capabilities.
| {{wikidata|qualifier|preferred|single|edit|Q5515367|P348|P548=Q2804309|P577}}
|-
| [MOE](/source/Molecular_Operating_Environment) || [Chemical Computing Group](/source/Chemical_Computing_Group) || {{proprietary}} || Windows, macOS, Linux || Includes 3D molecular sketching, editing, and 2D to 3D conversion.
| {{wikidata|qualifier|preferred|Q28447694|P348|P548=Q2804309|P577}}
|-
| [PyMOL](/source/PyMOL) || [Schrödinger, Inc.](/source/Schr%C3%B6dinger_(company)) || {{proprietary}} (Open-source version available) || [Cross-platform](/source/Cross-platform) || Popular molecular visualization tool with basic 3D editing capabilities for structural analysis.
| {{wikidata|qualifier|preferred|single|edit|Q1373457|P348|P548=Q2804309|P577}}
|-
| [SAMSON](/source/SAMSON) || OneAngstrom || {{proprietary}} || Windows, macOS, Linux || A modular platform for computational nanoscience, including 3D molecular editing.
| 2025
|-
| [Spartan](/source/Spartan_(chemistry_software)) || [Wavefunction, Inc.](/source/Wavefunction%2C_Inc.) || {{proprietary}} || Windows, macOS, Linux || Focused on 3D molecular modeling and simulation.
| {{wikidata|qualifier|preferred|Q17084877|P348|P548=Q2804309|P577}}
|-
| [VMD](/source/Visual_Molecular_Dynamics)|| [University of Illinois](/source/University_of_Illinois) || Free for non-commercial use || [Cross-platform](/source/Cross-platform) || 3D Molecular visualization tool that includes structure editing through the Molefacture plugin.
| {{wikidata|qualifier|preferred|edit|Q7936565|P348|P548=Q2804309|P577}}
|-
| [YASARA](/source/YASARA) || YASARA Biosciences || {{proprietary}} (Free version available) || [Cross-platform](/source/Cross-platform) || Molecular graphics and modeling software focused on structural biology, with extensive 3D capabilities.
| {{wikidata|qualifier|preferred|edit|Q8049645|P348|P548=Q2804309|P577}}
|-
|}

== Java Applets ==

{| class="wikitable"
! Applet !! Developer(s) !! License !! Info
|-
| [JChemPaint](/source/JChemPaint) ||  || {{LGPL-lic}} || Editor and viewer applets
|-
| [JME Molecule Editor](/source/JME_Molecule_Editor) || Peter Ertl || {{proprietary}} || [freeware](/source/freeware) available from [Molinspiration](/source/Molinspiration); [Freeware](/source/Freeware) for noncommercial use
|}

== JavaScript embeddable editors ==

{| class="wikitable"
! Program !! Developer 
!License!! Desktop Browser IE6-7-8 !! Desktop Browser other !! [iPad](/source/iPad) !! [iPhone](/source/iPhone) !! [Android](/source/Android_(operating_system)) 
!Info
|-
| [Kekulé Program](/source/Kekul%C3%A9_Program) || [Kekule.js Lab](/source/Kekule.js_Lab) 
|[MIT License](/source/MIT_License)|| {{yes}} || {{yes}} || {{unk}} || {{unk}} || {{unk}} ||
|-
|}

== See also ==
* [ChemSpider](/source/ChemSpider)
* [Comparison of software for molecular mechanics modeling](/source/Comparison_of_software_for_molecular_mechanics_modeling)
* [Molecular design software](/source/Molecular_design_software)

== Notes and references ==
{{Reflist|30em}}
==External links==
* [https://dx.doi.org/10.1186/1758-2946-2-1 Molecular structure input on the web]
* [http://metamolecular.com/chemwriter/articles/the-chemical-structure-editor-bridging-chemistry-and-cheminformatics/ The Chemical Structure Editor: Bridging Chemistry and Cheminformatics]

{{DEFAULTSORT:Molecule Editor}}
Category:Chemistry software
Category:Computational chemistry

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Adapted from the Wikipedia article [Molecule editor](https://en.wikipedia.org/wiki/Molecule_editor) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Molecule_editor?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.
