Mozilla Thunderbird

Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!...
Language(s): C, C++, JavaScript, CSS, XUL, XBL
Operating system(s): Windows XP SP2 or later, OS X 10.9 or later, FreeBSD, Linux
License: Mozilla Public License 2.0

MyDLP

Data Loss Prevention (DLP) - Only by building context around your most sensitive data will you gain a better understanding of how to protect, prioritize, lock down and monitor your data to avoid damag...
Language(s): Erlang, Java, C++, C#, Adobe Flex
Operating system(s): N/A
License: GNU General Public License

NWChem

NWChem aims to provide its users with computational chemistry tools that are scalable both in their ability to treat large scientific computational chemistry problems efficiently, and in their use of ...
Language(s): C, C++, Fortran, CUDA/OpenCL
Operating system(s): Linux, FreeBSD, Unix, Microsoft Windows, Mac OS X
License: Educational Community License 2.0

Natural Docs

Natural Docs lets you document code written in any of 20 programming languages, plus it can be easily extended for more so whatever you use, it can too. And if your project uses multiple languages, n...
Language(s): C#, Perl before version 2.0
Operating system(s): Cross-platform
License: Affero General Public License

Nextcloud

Nextcloud is a suite of client-server software for creating and using file hosting services. Nextcloud application functionally is similar to Dropbox. Unlike Dropbox, Nextcloud does not offer off-prem...
Language(s): PHP, JavaScript
Operating system(s): Linux Clients: Windows, macOS, Linux, Android, iOS
License: AGPL v3