Avogadro is an advanced molecule editor and visualizer designed for cross-platform use in computational chemistry, molecular modeling, bioinformatics, materials science, and related areas.
Publisher’s description
What is Avogadro2?
Avogadro2 is an open-source science & math program for Windows from https://avogadro.cc/. It is written in C++.
Installation and requirements
Official installers exist for 64-bit as EXE (NSIS). Installation asks for administrator rights. The installer supports unattended (silent) installation.
Updates and version history
The current version is 2.1.0, released on October 23, 2026. 4 versions are listed since February 11, 2024, each with links to its own installer files. That is about 1.5 releases a year. The last update is less than a month old.
Popularity and file types
The source code on GitHub (OpenChemistry/avogadroapp) has 271 stars. Similar programs include Stellarium, KiCad and Quarto.
Project description on GitHub: “Avogadro is an advanced molecular editor designed for cross-platform use in computational chemistry, molecular modeling, bioinformatics, materials science, and related areas.”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Updated in the last two months
Cons
- No native ARM64 build
- Installation needs administrator rights
In short: Avogadro2 is an open-source science & math tool for 64-bit PCs. Administrators can deploy it unattended.
Is Avogadro2 safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
B75884AB13412B7C936D99546BA1A5FCB2037DD432895F41CB6CFA0FA5B4D564· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 4 versions ›4 versions over 3 years · about 1.5 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 2.1.0Latest | October 23, 2026 | — | 64-bit EXE (NSIS) |
| 2.0.0 | April 1, 2026 | — | 64-bit EXE (NSIS) |
| 1.100.0 | January 22, 2025 | — | 64-bit EXE (NSIS) |
| 1.99.0 | February 11, 2024 | — | 64-bit EXE (NSIS) |
Install from the command line
Silent install ›winget install --id OpenChemistry.Avogadro2 -eAvogadro2-2.1.0-win64.exe /SRelated guide: How to use winget: install and update apps
Information
- Publisher
- https://avogadro.cc/
- Category
- Science & maths
- Licence
- BSD-3-Clause
- Price
- Free
- Source code
- github.com/OpenChemistry/avogadroapp
- Written in
- C++
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- EXE (NSIS)
- Version
- 2.1.0
- Released
- October 23, 2026
- Added to the catalogue
- June 12, 2024
- Versions listed
- 4
- Updates / year
- 1.5
- GitHub stars
- 271
- GitHub forks
- 93
- Website
- two.avogadro.cc
- winget ID
- OpenChemistry.Avogadro2
Ratings and reviews
No reviews yet. Be the first to rate it.
Alternatives to Avogadro2
See all ›-
Open source118K ↓ -
Open source126.7K ↓ -
Open source46K ↓ -
Open source12.2K ↓ -
Qalculate!5.13.2A highly versatile desktop calculator, with support for units, physical constants, uncertainty propagation, symbolic calculations, etc.Open source50.3K ↓ -
Open source24.6K ↓ -
Avogadro1.2.0Avogadro is an advanced molecular editor designed for cross-platform use in computational chemistry, molecular modeling, bioinformatics, materials science, and related areas. It offers flexible rendering and a powerful plugin architecture.Open source5.5K ↓ -
Open source17.7K ↓
Frequently asked questions
Is Avogadro2 free?
Yes. Avogadro2 is open-source software under the BSD-3-Clause licence.
Is Avogadro2 safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Avogadro2 with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Avogadro2 be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Avogadro2 run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Avogadro2?
The versions page lists all 4 versions with links to their official installer files, back to February 11, 2024.
What are alternatives to Avogadro2?
Stellarium, KiCad, Quarto, JASP and Qalculate!. The alternatives page compares them.
