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Avogadro is an advanced molecular editor designed for cross-platform use incomputational chemistry, molecular modeling, education, bioinformatics,materials science, and related areas.It offers flexible rendering and a powerful plugin architecture.

Core features and goals of the Avogadro project include:

• Open-source, distributed under the liberal 3-clause BSD license
• Cross-platform, with builds on Linux, Mac OS X and Windows
• An intuitive interface designed to be useful to the whole community
• Fast and efficient, embracing the latest technologies
• Extensible, making extensive use of a plugin architecture
• Flexible, supporting a range of chemical data formats and packages

Avogadro 2 began as a rewrite of the originalAvogadro 1.x, whichis now unsupported.The successor is faster, better, much more stable, and more featureful.A final couple of features yet to be ported will be implemented by the time ofthe 2.0 release, but in the meantime Avogadro 2 already hasmuch new functionality of its own.

Avogadro's codebase is split across alibraries repositoryand anapplication repository.The new code architecture provides a high-performance rendering engine, moderncode development, and significantly improved speed and stability.

Avogadro is being developed as part of theOpen Chemistryproject by an open community, which was started atKitware asan open-source community project.

For the most up-to-date experience use the continuous builds prepared by GitHubactions for:

• Windows
• macOS Apple Silicon
• macOS Apple Silicon
• Linux (AppImage)

We also maintain abeta Flatpakfor Linux that is updated with the lastest changes every week or two.

For full releases and an overview of all available ways to obtain Avogadro seetheoverview on the Avogadro website.

Binaries and the source code for each release can be found on theGitHub releases page.

If you would like to build from source we recommend that you follow ourbuild guide.

Ouruser documentation can be found on theAvogadro website, as well as a brief guide togetting started.

We welcomeall kinds of contributions as a community project, from bugreports, feature suggestions, language translations, Python plugins,and C++ code development.

Our project uses the standard GitHub pull request process for code reviewand integration. Please check ourcontribution guide for moredetails on developing and contributing to the project. TheGitHub issuetrackercan be used to report bugs, make feature requests, etc. Our API isdocumented online with updated documentation generated nightly.

To introduce yourself, ask for help, or general discussion, we welcome everyoneto ourforum

Contributors Hall of Fame: