Science
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Avagadro
Avagadro
Open Source Molecular Editor
Avogadro is an advanced molecular editor designed for cross-platform use in computational chemistry, molecular modeling, bioinformatics, materials science and related areas. It offers a flexible rendering framework and a powerful plugin architecture.
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Chemitorium
Chemitorium
Open Source Tool for Science Education
Open-source molecular builder, visualization and analysis tool. With Chemitorium you can create and edit structural formulas of organic compounds, and vire them in three-dimension. The results can be exported in various formats as picture or video file.
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Kalzium
Kalzium
Kalzium describes itself as "your digital replacement for the periodic table on paper." It displays information from the periodic table in a variety of ways, and it offers a molecular weight calculator, 3D molecule editor, an equation solver for stoichiometric problems and more. (Note that in order to use Kalzium on Windows, you'll need KDE for Windows.)
Operating System: Windows, Linux. Learn More... -
Jmol
Jmol
Java-based Jmol gives you a 3D view of molecules with features for chemicals, crystals, materials and biomolecules. In addition to the downloadable version, it's also available as a Web app or in a development tool kit.
Operating System: OS Independent. Learn More...