https://github.com/ksharindam/chemcanvas

User-friendly 2D chemical structure drawing tool
https://github.com/ksharindam/chemcanvas

chemical-drawing chemical-reactions cheminformatics chemistry drawing new pyqt

Last synced: 3 months ago
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User-friendly 2D chemical structure drawing tool

• Host: GitHub
• URL: https://github.com/ksharindam/chemcanvas
• Owner: ksharindam
• License: gpl-3.0
• Created: 2021-07-21T16:14:26.000Z (almost 5 years ago)
• Default Branch: main
• Last Pushed: 2026-01-05T13:26:56.000Z (5 months ago)
• Last Synced: 2026-01-06T14:59:52.381Z (5 months ago)
• Topics: chemical-drawing, chemical-reactions, cheminformatics, chemistry, drawing, new, pyqt
• Language: Python
• Homepage: https://ksharindam.github.io/chemcanvas/
• Size: 1.1 MB
• Stars: 25
• Watchers: 2
• Forks: 2
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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# ChemCanvas

A very intuitive opensource 2D chemical drawing tool.  

### Description

This is a very intuitive opensource 2D chemical drawing tool for windows and linux.  

You can draw organic chemical structures and reactions very easily and quickly.  

### Download

|    Windows    |    AArch64    |    AppImage   |     Debian    |  

| ------------- | ------------- | ------------- | ------------- |  

| ![EXE](https://github.com/ksharindam/chemcanvas-data/raw/main/icons/windows.png) | ![AArch64](https://github.com/ksharindam/chemcanvas-data/raw/main/icons/raspberry-pi.png) | ![AppImage](https://github.com/ksharindam/chemcanvas-data/raw/main/icons/appimage.png)  | ![debian](https://github.com/ksharindam/chemcanvas-data/raw/main/icons/debian.png)  |  

| [Download](https://github.com/ksharindam/chemcanvas/releases/latest/download/ChemCanvas.exe) | [Download](https://github.com/ksharindam/chemcanvas/releases/latest/download/ChemCanvas-aarch64.AppImage) | [Download](https://github.com/ksharindam/chemcanvas/releases/latest/download/ChemCanvas-x86_64.AppImage)  | [Download](https://github.com/ksharindam/chemcanvas/releases/latest/download/chemcanvas_all.deb)  |  

[![GET IT ON Flathub](https://flathub.org/api/badge?locale=en)](https://flathub.org/apps/io.github.ksharindam.chemcanvas)  

[![Get it from the Snap Store](https://snapcraft.io/en/dark/install.svg)](https://snapcraft.io/chemcanvas)  

View changelog in [releases page](https://github.com/ksharindam/chemcanvas/releases).  

**AppImage**  

AppImage can be run without installing. Just mark it executable, and then double click.  

**Snap**  

To install snap package from snap store  

`sudo snap install chemcanvas`  

**Flatpak**  

To install the flatpak from flathub  

`flatpak install flathub io.github.ksharindam.chemcanvas`  

Run flatpak with...  

`flatpak run io.github.ksharindam.chemcanvas`  

**Windows**  

For windows download exe package, and double click to install.  

For windows 7 you also need to install Visual C++ 2015-2022 (64bit).  

### Features

* Import from and export to SMILES, MDL Molfile, Marvin Document (MRV), ChemDraw XML (CDXML)  

* In future more chemical file formats will be supported  

* Save to PDF, PNG and Editable SVG   

* Many bond types including wavy bond, Cis/Trans, Bold double, Any Bond etc.  

* Atom, Bond and other objects coloring support  

* Aromaticity detection and add delocalization ring  

* Download structure from PubChem  

### Installation (Pip)

If you want to install using pip, first install these dependencies...  

* python3 (>=3.8)  

* python3-pyqt5  

* pytqt5-dev-tools (to generate ui and resource file)  

Inside project root directory, run following commands..  

`sudo pip3 install --no-build-isolation .`  

To uninstall run..  

`$ sudo pip3 uninstall chemcanvas`  

### Screenshots

![Screenshot1](https://github.com/ksharindam/chemcanvas-data/raw/main/Screenshots/screenshot1.png)  

![Screenshot2](https://github.com/ksharindam/chemcanvas-data/raw/main/Screenshots/screenshot2.png)  

![Screenshot3](https://github.com/ksharindam/chemcanvas-data/raw/main/Screenshots/screenshot3.png)