Server
DAVx⁵ is an open-source CalDAV/CardDAV suite and sync app for Android. You can also access your online files (WebDAV) with it.
The Free Software Media System - Server Backend & API
Get up and running with Llama 3.3, DeepSeek-R1, Phi-4, Gemma 3, Mistral Small 3.1 and other large language models.
SearXNG is a free internet metasearch engine which aggregates results from various search services and databases. Users are neither tracked nor profiled.
PLANKA is the kanban-style project mastering tool for everyone.
🧠 Leon is your open-source personal assistant.
Self hosted FLOSS fitness/workout, nutrition and weight tracker
🔥 LimeSurvey – A powerful, open-source survey platform. A free alternative to SurveyMonkey, Typeform, Qualtrics, and Google Forms, making it simple to create online surveys and forms with unmatched…
♞ lichess.org: the forever free, adless and open source chess server ♞
NVR with realtime local object detection for IP cameras
Open source API development ecosystem - https://hoppscotch.io (open-source alternative to Postman, Insomnia)
🌐 The Internet OS! Free, Open-Source, and Self-Hostable.
An open-source & self-hostable Heroku / Netlify / Vercel alternative.