Apache Spark Kindmachine learning framework, free software, Apache Software Foundation project, cloud computingImplemented inR, Java, Python, Scala, SQL, Java Database ConnectivityLicenceApache Software License 2.0, BSD licenses
Apache Wave Kindweb application, computing platform, collaborative softwareImplemented inJava, Google Web ToolkitLicenceApache Software License 2.0
Apache Wicket Kindweb framework, Apache Software Foundation projectImplemented inJavaLicenceApache License
Apocalypse Kindgame engineDeveloperNeversoftPlatformPlayStation, Classic Mac OS, Microsoft Windows, Dreamcast
AppFlowy Kindapplication software, personal knowledge management, Brainstorming software, personal knowledge base, self-hosting, hypertext system, wiki software, productivity softwareImplemented inFlutter, RustLicenceGNU Affero General Public License, version 3.0
Apptainer Kinddigital container format, Linux Foundation project, free and open-source software, container runtimeImplemented inC, GoLicence3-clause BSD License
ApusGameEngine Kindsoftware engine, free softwareImplemented inDelphi, PascalLicence3-clause BSD License
AraMorph Kindmorphological analysis engineLicenceGNU General Public License, version 2.0Latest version1.2.1
Arcan Kindopen-source softwareImplemented inCLicence3-clause BSD License, GNU Lesser General Public License, GNU General Public License, version 2.0 or later
Arx Libertatis Kindsource port, video gameLicenceGNU General Public License, version 3.0Based onArx Fatalis
ASCII KindUnicode range, character encoding, coded character set, technical standardSucceeded byISO/IEC 8859, ISO/IEC 646
ASP.NET Core Kindopen-source software, web frameworkImplemented inC#LicenceApache Software License 2.0
ASP.NET MVC Framework Kindweb framework, free softwareImplemented inC#, Visual Basic .NETLicenceApache Software License 2.0, Microsoft Public License
Assistive Technology Service Provider Interface Implemented inCLicenceGNU Lesser General Public License, version 2.1 or laterLatest version2.62.1 (October 10, 2026)
Astro Kindweb framework, JavaScript framework, free and open-source softwareImplemented inRustLicenceMIT License
Asura Kindgame engineDeveloperRebellion DevelopmentsPlatformPlayStation 2, PlayStation 3, Xbox, Microsoft Windows, PlayStation Portable, Nintendo GameCube, PlayStation Vita, Xbox 360, Wii
Automated Testing Framework Kindsoftware testing framework, test harnessLatest version0.26 (September 22, 2026)Used forsoftware testing
Avalanche Kindblockchain framework, cryptocurrency, blockchain, smart contract platform, payment systemImplemented inGoLicence3-clause BSD License
AVFoundation Kindmultimedia framework, application programming interface, software development kitDeveloperApple Inc.
AVKit Kindmultimedia framework, application programming interface, software development kitDeveloperApple Inc.
Away3D Kindweb3d framework, free and open-source softwareImplemented inActionScriptLicenceApache Software License 2.0
AzooKeyKanaKanjiConverter Kindsoftware library, software engine, free and open-source softwareImplemented inSwiftLicenceMIT License
Babylon.js Kindweb3d framework, graphics engine, free and open-source software, JavaScript libraryImplemented inJavaScript, TypeScriptLicenceApache Software License 2.0
Barracuda Kindweb framework, free softwareLicenceGNU Lesser General Public LicenseUsed forweb framework
Base One Foundation Component Library Kindweb frameworkImplemented inC++DeveloperBase One International
BEdita Kindcontent management system, web framework, free softwareImplemented inPHPLicenceGNU Affero General Public License, version 3.0