Advanced Linux Sound Architecture Implemented inCLicenceGNU General Public License, version 3.0, GNU Lesser General Public LicenseAppeared1998
Aiki Framework Implemented inJavaScript, PHPLicenceGNU Affero General Public LicenseKindcontent management system, web framework, free software
Ansible Implemented inUnix shell, C#, Python, PowerShellLicenceGNU General Public License v3.0 or later, proprietary licenseAppeared2012
Apache Spark Implemented inR, Java, Python, Scala, SQL, Java Database ConnectivityLicenceApache Software License 2.0, BSD licensesAppeared2014
ASP.NET MVC Framework Implemented inC#, Visual Basic .NETLicenceApache Software License 2.0, Microsoft Public LicenseKindweb framework, free software
Barracuda LicenceGNU Lesser General Public LicenseKindweb framework, free softwareUsed forweb framework
BEdita Implemented inPHPLicenceGNU Affero General Public License, version 3.0Kindcontent management system, web framework, free software
Boa Implemented inRustLicenceUnlicense, MIT LicenseKindopen-source software, free software, JavaScript engine
Box3D LicenceMIT LicenseKindmiddleware, free software, physics engineLatest version0.1.0 (June 30, 2026)
Clap Implemented inRustLicenceApache Software License 2.0, MIT LicenseKindRust library, free software
Crypton Implemented inJavaScriptLicenceGNU Affero General Public LicenseKindweb framework, free software, JavaScript library
Crystal Space Implemented inC++LicenceGNU Lesser General Public License, GNU General Public LicenseKindapplication software, game engine, free software, graphics engine
Data Transfer Project LicenceApache Software License 2.0Kindproject, computing platform, free softwareLatest version1.0.4 (February 14, 2024)
Decibel Implemented inPythonLicenceGNU Lesser General Public License, version 2.1, GNU General Public License, version 2.0 or laterKindfree software
Delta3D Implemented inC++LicenceGNU Lesser General Public License, version 2.1 or laterKindgame engine, free software
Doom Emacs Implemented inEmacs LispLicenceMIT LicenseKindfree software, software bundle, application framework
Dweb Framework Implemented inDLicenceGNU Affero General Public License, version 3.0Kindweb framework, free software
ELKI Implemented inJavaLicenceGNU Affero General Public LicenseKindscience software, machine learning framework, free software
Equinox Implemented inJavaLicenceEclipse Public License 2.0KindEclipse Foundation project, free software, software
Ethereum Implemented inC, Ruby, Assembly language, JavaScript, XML, C++, Java, Python, AMPL, Go, Cascading Style Sheets, HTMLLicenceGNU General Public License, version 3.0Appeared2015
Feather Wiki LicenceGNU Affero General Public License, version 3.0 or laterKindfree software, wiki softwareLatest version1.8.0 (May 29, 2024)