Chandler

Chandler was a personal information management software suite described by its developers as a "Note-to-Self Organizer" designed for personal and small-group task management and calendaring. It is fre...
Language(s): Python
Operating system(s): Linux, Mac OS X, Windows
License: Apache License 2.0

Chemistry Development Kit

The Chemistry Development Kit (CDK) is a collection of modular Java libraries for processing chemical information (Cheminformatics). The modules are free and open-source and are easy to integrate with...
Language(s): Java
Operating system(s): Windows, Linux, Unix, Mac OS
License: GNU Lesser General Public License 2.0

Chromium

Chromium is an open-source web browser project that aims to build a safer, faster, and more stable way for all Internet users to experience the web. This site contains design documents, architecture o...
Language(s): C, C++, Java, JavaScript, Python
Operating system(s): Windows 7 or later, Android KitKat or later, Mac OS X 10.10 or later, Linux, FreeBSD, OpenBSD
License: BSD, MIT, LGPL, MS-PL, MPL+GPL+LGPL tri-licensed

Claroline

Claroline is a collaborative eLearning and eWorking platform (learning management system) released under the GPL open-source license. It allows hundreds of organizations worldwide ranging from univers...
Language(s): PHP
Operating system(s): Windows, Mac OS, Linux
License: GNU General Public License

Cyberduck

Cyberduck is an open-source client for FTP and SFTP, WebDAV, and cloud storage (OpenStack Swift, Amazon S3, Backblaze B2 and Microsoft Azure), available for macOS and Windows (as of version 4.0) licen...
Language(s): Java, C#
Operating system(s): Mac OS, Windows
License: GPL v2+