DokuWiki - DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.
IntelliJ IDEA - Capable and Ergonomic IDE for JVM
MediaWiki - MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.
Microsoft Visual Studio - Microsoft Visual Studio is an integrated development environment (IDE) from Microsoft.
Confluence - Confluence is content collaboration software that changes how modern teams work
Eclipse - Eclipse is an open source community, whose projects are focused on building an open development platform comprised of extensible frameworks, tools and runtimes for building, deploying and managing software across the lifecycle.