Free and Open Source, just like Blender!
released version
1. ChemBlender_alpha (2024.03.14 supports Blender 4.0)
2. ChemBlender_1_0 (2025.04.01 supports Blender 4.1)
3. ChemBlender_1_0 (2025.04.01 supports Blender 4.2-4.4)
4. ChemBlender_1_1 (2025.10.29 supports Blender 4.2-4.5)
5. ChemBlender_1_2 (2026.02.17 supports Blender 5.0-5.1)
6. ChemBlender_2_0 (2026.04.01 supports Blender 4.4-4.5)
7. ChemBlender_2_0 (2026.05.19 supports Blender 5.0-5.1)
8. ChemBlender_2_1 (2026.05.29 supports Blender 5.0-5.1, beta version)
user manual
Download Any Blender
https://www.blender.org/download/previous-versions/
It is recommended to install Blender in a location other than the system disk (C drive).
Python libraries introduction
You can install third-party python libraries in Blender by entering the following command in the Blender Python Console window. For example, to install RDKit:
import sys
import subprocess
python_exe = sys.executable
subprocess.call([python_exe, '-m', 'pip', 'install', 'rdkit'])
The code above sometimes doesn’t work. Maybe you can use the code below to specify the installation location.
import os
site = os.path.join(os.path.dirname(os.path.dirname(python_exe)), 'lib', 'site-packages')
subprocess.call([python_exe, '-m', 'pip', 'install', 'rdkit', '--target', site])
or you can download RDKit package from Tsinghua pypi, and then unzip it to the 'site-packages' folder of your Blender installation path. Confirm that the downloaded version matches your software.
For example, rdkit-2025.3.1-cp311-cp311-win_amd64.whl might be a suitable choice for Blender 4.2-4.5 (Windows system). BTW, the .whl file extension can be changed to .zip for extraction.