Wakanda Kinddocument-oriented database management system, integrated development environment, database management system, proprietary software, free softwareImplemented inJavaScriptLicenceGNU General Public License, version 3.0, GNU Affero General Public License
WebKit Kindfree software, browser engineLicence2-clause BSD License, GNU Library General Public License, version 2.0 or laterDeveloperChris Dumez, Eric Seidel, Apple Inc., Darin Adler
Werc Kindpublic-domain software, static site generatorImplemented inRcOperating systemUnix-like operating system, cross-platform, Plan 9
Wiki.js Kindfree software, wiki softwareImplemented inJavaScriptLicenceGNU Affero General Public License, version 3.0
Wikibase Kindopen-source software, graph database management system, knowledge management software, data management software, software extension, free software, wiki softwareImplemented inJavaScript, PHPLicenceGNU General Public License, version 2.0 or later
Wikidot Kindfree and open-source software, wiki softwareImplemented inJavaScript, PHP, SmartyLicenceAffero General Public License
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