Windows Communication Foundation Kindcomputer programDeveloperMicrosoftOperating systemMicrosoft Windows
Windows Presentation Foundation Kindwidget toolkitLicenceMIT LicenseLatest version10.0.13 (October 13, 2026)
Windows UI Library Kindwidget toolkit, free and open-source software, application frameworkLicenceMIT LicenseDeveloperMicrosoft
Windows-1251 KindWindows code pageUsed forRussian, Bulgarian, Cyrillic script, Ukrainian, Kazakh, Macedonian, Serbo-CroatianPreceded byWindows-1250
Wonderland Engine Kindgame engineImplemented inWebGPU Shading Language, JavaScript, C++, OpenGL Shading Language, TypeScriptDeveloperRobot Invader
WorldForge Kindgame engine, free softwareImplemented inC++LicenceGNU General Public License, version 2.0, GNU Lesser General Public License, GNU General Public License v3.0 or later
WSL Container KindNuGet Package, console application, container runtimeImplemented inC#, C++DeveloperMicrosoft
Wt Kindweb framework, software library, proprietary softwareImplemented inC++Licenceend-user license agreement, GNU General Public License
Xaraya Kindcontent management system, web frameworkImplemented inPHPLicenceGNU General Public License
Xash3D Kindsoftware library, game engine, free softwareImplemented inCLicenceGNU General Public License, version 3.0
YAML (Yet Another Multicolumn Layout) Kindfree software, CSS frameworkLicenceCreative Commons Attribution 2.0 GenericLatest version4.1.2 (July 28, 2013)
Yeti3DS Kindhomebrew video game, homebrew software, game engineLicencefreeware, proprietary licenseDevelopersmealum
Yew Kindweb framework, free softwareImplemented inRustLicenceApache Software License 2.0, MIT License
ZDoom Kindfree software, source portLicenceGNU General Public License, version 2.0Based onATB Doom, Linux Doom
Zikula Kindcontent management system, web frameworkImplemented inPHPLicenceGNU General Public License
ZK Kindweb framework, Java software library, free softwareImplemented inJavaLicenceGNU Lesser General Public License