All SaaS

Synapse

element-hq.github.io

Open source

Server for Matrix, an open standard for decentralized persistent communication.

Sync-in

sync-in.com

Open source

File storage, syncing, sharing, and collaboration with real-time editing, permission management, and desktop/CLI clients.

SyncMarks

codeberg.org

Open source

Sync and manage your browser bookmarks from Edge, Firefox and Chromium.

Syncthing

syncthing.net

Open source

Syncthing is an open source peer-to-peer file synchronisation tool.

SyncTube

github.com

Open source

Lightweight and very simple to setup CyTube alternative to watch videos with friends and chat.

Tabler-Icons

tabler-icons.io

Open source

Open-source alternative to Noun Project.

TagSpaces

tagspaces.org

Open source

TagSpaces is an offline, cross-platform file manager and organiser that also can function as a note taking app. The WebDAV version of the application can be installed on top of a WebDAV servers such as Nextcloud or ownCloud.

Talkyard

talkyard.io

Open source

Create a community, where your users can suggest ideas and get questions answered. And have friendly open-ended discussions and chat (Slack/StackOverflow/Discourse/Reddit/Disqus hybrid).

Tasmota

tasmota.com

Open source

Open source firmware for ESP devices. Total local control with quick setup and updates. Control using MQTT, Web UI, HTTP or serial. Automate using timers, rules or scripts. Integration with home automation solutions.

TeamMapper

github.com

Open source

Host and create your own mindmaps. Share your mindmap sessions with your team and collaborate live on mindmaps.

Technitium DNS Server

technitium.com

Open source

Authoritative/recursive DNS server with ad blocking functionality.

teikei

github.com

Open source

A web application that maps out community-supported agriculture based on crowdsourced data.

Textpattern

textpattern.com

Open source

Flexible, elegant and easy-to-use CMS.

The Battle for Wesnoth

github.com

Open source

The Battle for Wesnoth is an Open Source, turn-based tactical strategy game with a high fantasy theme, featuring both singleplayer and online/hotseat multiplayer combat.

The Lounge

thelounge.chat

Open source

Self-hosted web IRC client.

Thelia

thelia.net

Open source

Thelia is an open source and flexible e-commerce solution.

Thingsboard

thingsboard.io

Open source

Open-source IoT Platform - Device management, data collection, processing and visualization.

Tigase

tigase.net

Open source

XMPP server implementation in Java.

Tiledesk

tiledesk.com

Freemium

All-in-one customer engagement platform from lead-gen to post-sales, from WhatsApp to your website. With omni-channel live agents and AI-powered chatbots (alternative to Intercom, Zendesk, Tawk.to and Tidio).

TileServer GL

tileserver.readthedocs.io

Open source

Vector and raster maps with GL styles. Server side rendering by Mapbox GL Native. Map tile server for Mapbox GL JS, Android, iOS, Leaflet, OpenLayers, GIS via WMTS, etc.

Tine

tine-groupware.de

Open source

Software for digital collaboration in companies and organizations. From powerful groupware functionalities to clever add-ons, tine combines everything to make daily team collaboration easier.

Tiny File Manager

tinyfilemanager.github.io

Open source

Web based File Manager in PHP, simple, fast and small file manager with a single file.

Tiny Tiny RSS

tt-rss.org

Open source

Web-based news feed (RSS/Atom) reader and aggregator.

TinyFeed

feed.lovergne.dev

Open source

Generate a static HTML page from a collection of feeds with a simple CLI.