This list is divided into proprietary or free software, and open source software, with several comparison tables of different product and vendor characteristics. It also includes a section of project collaboration software, which is a standard feature in collaboration platforms. Collaborative software Comparison of notable software Systems listed on a light purple background are no longer in active development. General Information Comparison of unified communications features Comparison of collaborative software features Comparison of targets Open source software The following are open source applications for collaboration: Standard client–server software Access Grid, for audio and video-based collaboration Axigen Citadel/UX, with support for native groupware clients (Kontact, Novell Evolution, Microsoft Outlook) and web interface Cyn.in EGroupware, with support for native groupware clients (Kontact, Novell Evolution, Microsoft Outlook) and web interface Group-Office groupware and CRM Kolab, various native PIM clients Kopano OpenGroupware.org phpGroupWare Scalix SOGo, integrated email, calendaring with Apple iCal, Mozilla Thunderbird and native Outlook compatibility Teambox, Basecamp-style project management software with focus on GTD task management and conversations. (Only V3 and prior are open-source.) Zarafa Zentyal, with support for native groupware clients (Kontact, Novell Evolution) natively for Microsoft Outlook and web interface Zimbra Zulip Groupware: Web-based software Axigen Bricolage, content management system BigBlueButton, Web meetings Collabora Online, Enterprise-ready edition of LibreOffice enabling real-time collaborative editing of documents, spreadsheets, presentations and graphics DotNetNuke, also called DNN: module-based, evolved from ASP 1.0 demo applications EGroupware, a free open source groupware software intended for businesses from small to enterprises EtherPad, collaborative drafting with chat Feng Office Community Edition FusionForge, has wiki, forums, mailing lists, FTP, SSH, subdomains, hosting, email alias, backups, CVS/SVN, task management Group-Office, Web-based groupware for sharing calendars, files, e-mail, CRM, Projects, Mobile Synchronization and much more. Horde HumHub a free and open-source enterprise social network solution IceWarp Server Jumper 2.0, collaborative search engine and knowledge management platform Kolab Groupware, integrated Roundcube web frontend Kune, collaborative federated social network, based on Apache Wave Loomio, for making decisions together (AGPL). MediaWiki, which provides core content management and integrates with many other tools via extensions Nextcloud, file hosting service, functionally similar to Dropbox, Office 365 or Google Drive when used with its integrated office suite solutions Collabora Online or OnlyOffice OnlyOffice Community Server, available for Microsoft and Linux OpenBroadcaster LPFM IPTV broadcast automation tools Overleaf for creating LaTeX documents phpGroupWare Simple Groupware SOGo, integrated email, calendaring with Apple iCal, Mozilla Thunderbird and native Outlook compatibility