V VideoLAN Client (VLC) Cross-platform multimedia player client and server supporting most multimedia files as well as DVDs, Audio CDs, VCDs, and various streaming protocols. Self-hostedOpen sourceMedia Streaming - Video Streaming GPL-2.0C
V Vinyl Cache Web application accelerator/caching HTTP reverse proxy (formerly Varnish). Self-hostedOpen sourceWeb Servers BSD-2-ClauseGo
V Virola Messenger Instant messaging and collaboration tool with private and group chat rooms, continuous voice and video meetings, files sharing, issue tracking with integrated task board (alternative to Slack). Self-hostedFreeCommunication - Custom Communication Systems ProprietaryC++
V Virtual TimeClock Powerful, easy-to-use time tracking software. Self-hostedFreeTime Tracking ProprietaryUnknown
V Väinö High-fidelity music server for Raspberry Pi with iOS and Android companion apps. Self-hostedFreeMedia Streaming - Audio Streaming ProprietaryPython
W Wazo Full-featured IPBX solution built atop Asterisk with integrated Web administration interface and REST-ful API. Self-hostedOpen sourceCommunication - SIP GPL-3.0Python
W WikiSuite The most comprehensive and integrated Free / Libre / Open Source enterprise software suite. Self-hostedOpen sourceSelf-hosting Solutions GPL-3.0Shell
W Wiznote Manage your knowledge in documents with folders, markdown, full text search and webpage collection support. Self-hostedFreeKnowledge Management Tools ProprietaryDocker
yarn.social Self-Hosted, Twitter™-like Decentralised micro-logging platform. No ads, no tracking, your content, your data. Self-hostedOpen sourceCommunication - Social Networks and Forums MITGo
Y Yeti-Switch Transit class4 softswitch(SBC) with integrated billing and routing engine and REST API. Self-hostedOpen sourceCommunication - SIP GPL-2.0C++
Y Yetishare Powerful file hosting script with support for Amazon S3, Wasabi, Backblaze, local, direct and SFTP storage. Self-hostedFreeFile Transfer & Synchronization ProprietaryPHP
YunoHost Server operating system aiming to make self-hosting accessible to everyone. Self-hostedOpen sourceSelf-hosting Solutions AGPL-3.0Python
Z Zimbra Collaboration Email, calendar, collaboration server with Web interface and lots of integrations. Self-hostedOpen sourceGroupware GPL-2.0Java
Ü üWave Self-hosted collaborative listening platform. Users take turns playing media, songs, talks, gameplay videos, or anything else, from a variety of media sources like YouTube and SoundCloud. Self-hostedOpen sourceMedia Streaming - Multimedia Streaming MITNodejs