Nginx

Nginx is a web server which can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache. The software was created by Igor Sysoev and first publicly released in 2004. A company of the...
Language(s): C
Operating system(s): BSD variants, HP-UX, IBM AIX, Linux, macOS, Solaris, Windows, and other Unix/Linux flavors.
License: 2-clause BSD

OnlyOffice

OnlyOffice (formerly TeamLab), stylized as ONLYOFFICE, is an open source office suite developed by Ascensio System SIA, a company with headquarters in Riga, Latvia. Solution features online document e...
Language(s): HTML, JavaScript, C++
Operating system(s): Windows, Mac OS, Linux, Android, iOS
License: AGPLv3

Open Babel

Open Babel is a chemical toolbox designed to speak the many languages of chemical data. It's an open, collaborative project allowing anyone to search, convert, analyze, or store data from molecular mo...
Language(s): C++
Operating system(s): Windows, Mac OS, Linux, Android
License: General Public License 2.0

OpenCV

OpenCV (Open Source Computer Vision Library) is released under a BSD license and hence it’s free for both academic and commercial use. It has C++, Python and Java interfaces and supports Windows, Linu...
Language(s): C, C++, Python, Java
Operating system(s): Windows, Linux, Mac OS, iOS, Android
License: BSD license

OpenCog

OpenCog is an open-source software project aimed at directly confronting the AGI challenge, using mathematical and biological inspiration and professional software engineering techniques. The OpenC...
Language(s): C++, Python, Scheme
Operating system(s): Linux
License: GNU Affero General Public License