CodePlex是一个由微软公司于2006年5月所建置的Open Source托管网站，在此网站中所发布的所有程序都可以下载源代码使用，目前它已经成为微软软件的周边组件或扩展的发布管道。

在CodePlex中较有名的软件有：

CodePlex is an open-source project hosting website by Microsoft. It allows shared development of open-source software. CodePlex is a website where engineers and computer scientists share projects and ideas. Its features include wiki pages, source control based on Mercurial, Team Foundation Server (TFS), Subversion (also powered by TFS) or Git, discussion forums, issue tracking, project tagging, RSS support, statistics, and releases (ClickOnce-releases are also supported).