S SentryShot Video surveillance management system. Self-hostedOpen sourceVideo Surveillance GPL-2.0Rust
S SilverStripe Easy to use CMS with powerful MVC framework underlying. Self-hostedOpen sourceContent Management Systems (CMS) BSD-3-ClausePHP
S Single File PHP Gallery Web gallery in one single PHP file. Self-hostedFreePhoto Galleries ProprietaryPHP
S SIP3 VoIP troubleshooting and monitoring platform. Self-hostedOpen sourceCommunication - SIP Apache-2.0Java
S slcl Simple and lightweight web cloud storage. Self-hostedOpen sourceFile Transfer - Web-based File Managers AGPL-3.0C
S Smederee A frugal platform which is dedicated to help people build great software together leveraging the power of the Darcs version control system. Self-hostedOpen sourceSoftware Development - Project Management AGPL-3.0Scala
S Solo Free project management app created for freelancers. Create contacts, manage tasks, upload files, track project progress, and keep notes. Self-hostedFreeSoftware Development - Project Management ProprietaryPHP
Sourcehut A full web git interface with no javascript. Self-hostedOpen sourceSoftware Development - Project Management GPL-2.0Go
S SparkView Browser-based remote access solution. No VPN client; just deploy the software in the DMZ. Access VMs, desktops, servers, and apps anytime, anywhere, without complex and costly client rollouts or user management. Self-hostedFreeRemote Access ProprietaryJava
SPIP Publication system for the Internet aimed at collaborative work, multilingual environments, and simplicity of use for web authors. Self-hostedOpen sourceContent Management Systems (CMS) GPL-3.0PHP
S Squid Caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. It reduces bandwidth and improves response times by caching and reusing frequently-requested web pages. Self-hostedOpen sourceProxy GPL-2.0C
S SquirrelMail Another browser-based IMAP client. Self-hostedOpen sourceCommunication - Email - Webmail Clients GPL-2.0PHP
S Subsonic Web-based media streamer and jukebox. Self-hostedFreeMedia Streaming - Video Streaming ProprietaryUnknown
S SupportPal Powerful help desk software - easy, fast and intuitive. Self-hostedFreeTicketing ProprietaryPHP
S Surfer Simple static file server with webui to manage files. Self-hostedOpen sourceFile Transfer - Web-based File Managers MITNodejs
S SyncMarks Sync and manage your browser bookmarks from Edge, Firefox and Chromium. Self-hostedOpen sourceBookmarks and Link Sharing AGPL-3.0PHP
Taiga Agile Project Management Tool based on the Kanban and Scrum methods. Self-hostedOpen sourceSoftware Development - Project Management MPL-2.0Python
Taskwarrior Taskwarrior is Free and Open Source Software that manages your TODO list from your command line. It is flexible, fast, efficient, and unobtrusive. It does its job then gets out of your way. Self-hostedOpen sourceTask Management & To-do Lists MITC++
Telebugs Lightweight error tracker without a subscription (alternative to Sentry). Self-hostedFreeTicketing ProprietaryDocker
Trac Trac is an enhanced wiki and issue tracking system for software development projects. Self-hostedOpen sourceSoftware Development - Project Management BSD-3-ClausePython
Traccar Java application to track GPS positions. Supports loads of tracking devices and protocols, has an Android and iOS App. Has a web interface to view your trips. Self-hostedOpen sourceMaps and Global Positioning System (GPS) Apache-2.0Java
TrueConf Platform for your corporate communications, based on the advanced architecture, with support for UltraHD video conferencing, built-in messenger with personal and group chats, and a free version for up to 1,000 users. Self-hostedFreeCommunication - Video ConferencingCommunication - Custom Communication Systems ProprietaryDocker
T Tube Youtube-like (_without censorship and features you don't need!_) video sharing app written in Go which also supports automatic transcoding to MP4 H.265 AAC, multiple collections and RSS feed. Self-hostedOpen sourceMedia Streaming - Video Streaming MITGo
T Tuleap Tuleap is a libre suite to plan, track, code and collaborate on software projects. Self-hostedOpen sourceSoftware Development - Project Management GPL-2.0PHP
T Turtl Totally private personal database and note taking app. Self-hostedOpen sourceNote-taking & Editors GPL-3.0CommonLisp
Ubooquity Free to use, versatile, lightweight, multi-platform, and secure home server for your comic and e-book library. Self-hostedFreeDocument Management - E-books ProprietaryJava
U UBOS Linux distro that runs on indie boxes (personal servers and IoT devices). Single-command installation and management of apps - Jenkins, Mediawiki, Owncloud, WordPress, etc., and other features. Self-hostedOpen sourceSelf-hosting Solutions GPL-3.0Perl
Unraid Linux-based operating system designed to run on home media server setups. Self-hostedFreeSelf-hosting Solutions ProprietaryUnknown