Koishi.js Kindsoftware library, JavaScript framework, free softwareImplemented inJavaScript, TypeScriptLicenceMIT License
Kopi KindGNU package, free software, application frameworkImplemented inJavaLicenceGNU General Public License, version 2.0, GNU Lesser General Public License, version 2.1
KParts Kindsoftware library, free softwareImplemented inC++LicenceGNU Lesser General Public License, version 2.1 or later
Laminas Kindcontent management system, web framework, free and open-source softwareImplemented inPHPLicence3-clause BSD License
Lapis Kindweb framework, free and open-source softwareImplemented inLua, MoonScriptLicenceMIT License
LDC Standard Arabic Morphological Analyzer (SAMA) Version 3.1 Kindmorphological analysis engine, data setAppeared2010First releaseJuly 19, 2010
Lektor Kindcontent management system, free software, static site generatorLicence3-clause BSD LicenseLatest version3.3.14 (August 7, 2026)
Lexical Kindweb framework, free and open-source software, JavaScript libraryImplemented inJavaScriptLicenceMIT License
Libav Kindmultimedia framework, abandoned project, fork, free softwareImplemented inC, Assembly languageLicenceGNU General Public License, version 2.0 or later, GNU Lesser General Public License, version 2.1 or later
Libdash Kindmultimedia framework, free softwareImplemented inC++LicenceGNU Lesser General Public License
LinuxMCE Kindmultimedia framework, Linux distribution, home theater PCImplemented inCLatest version1004 (23 февраля 2013)
LSPosed Kindfree and open-source software, mobile appImplemented inC++, JavaLicenceGNU General Public License, version 3.0
Luanti Kindapplication software, game engine, free software, game creation systemImplemented inLua, C++LicenceCreative Commons Attribution-ShareAlike 3.0 Unported, GNU Lesser General Public License, version 2.1 or later
LXC Kindfree and open-source software, container runtimeImplemented inC, Bourne shellLicenceGNU Lesser General Public License, version 2.1 or later
Macromedia Flash Kindmultimedia framework, application softwareDeveloperMacromediaPreceded byFutureSplash Animator
MapLibre GL JS Kindopen-source software, web framework, fork, JavaScript library, npm packageImplemented inOpenGL Shading Language, TypeScriptLicence3-clause BSD License