Language
Open-source startups written in C#
11 open-source startups in this directory ship primarily in C#. 10 pushed code within 30 days of the snapshot of 2026-09-22, 0 have been quiet for 31–120 days, 1 has not pushed in over 120 days. Primary language is GitHub’s own field — the language holding the most bytes in the default branch — not a claim about what the whole product is written in.
10 of 11 pushed within 30 days of the snapshot of 2026-09-22. How we measure it →
The list
All 11, most-starred first.
The last column is the most recent push GitHub reported to us on 2026-09-22. It counts a push to any branch, by a person or a bot — it is not a claim that anyone is maintaining the project, and a quiet repository may be a finished one.
| Project | What it does | Stars | Ship status | Last verified push |
|---|---|---|---|---|
| jellyfin/jellyfin | The Free Software Media System - Server Backend & API | 57.4K | Still shipping | Sep 22, 2026 |
| ShareX/ShareX | ShareX is a free and open-source application that enables users to capture or record any area of their screen with a single keystroke. It also supports uploading images, text, and various file types to a wide range of destinations. | 39.7K | Still shipping | Sep 22, 2026 |
| BeyondDimension/SteamTools | 🛠「Watt Toolkit」是一个开源跨平台的多功能 Steam 工具箱。 | 26.9K | Still shipping | Aug 31, 2026 |
| CodeHubApp/CodeHub | CodeHub is an iOS application written using Xamarin | 22.6K | Gone silent | Jun 22, 2022 |
| bitwarden/server | Bitwarden infrastructure/backend (API, database, Docker, etc). | 20.2K | Still shipping | Sep 22, 2026 |
| Sonarr/Sonarr | Smart PVR for newsgroup and bittorrent users. | 16.4K | Still shipping | Sep 21, 2026 |
| Flow-Launcher/Flow.Launcher | :mag: Quick file search & app launcher for Windows with community-made plugins | 15.6K | Still shipping | Sep 20, 2026 |
| seerge/g-helper | Lightweight Armoury Crate alternative for Asus laptops with nearly the same functionality. Works with ROG Zephyrus, Flow, TUF, Strix, Scar, ProArt, Vivobook, Zenbook, Expertbook, ROG Ally, and more. | 15.3K | Still shipping | Sep 22, 2026 |
| Radarr/Radarr | Movie organizer/manager for usenet and torrent users. | 14.4K | Still shipping | Sep 20, 2026 |
| mRemoteNG/mRemoteNG | mRemoteNG is the next generation of mRemote, open source, tabbed, multi-protocol, remote connections manager. | 11.1K | Still shipping | Sep 22, 2026 |
| nopSolutions/nopCommerce | ASP.NET Core eCommerce software. nopCommerce is a free and open-source shopping cart. | 10.2K | Still shipping | Sep 22, 2026 |
Related collections
Sideways from here.
The 8 largest other languages in the directory, then the other ways to slice it. Every count is as of the snapshot of 2026-09-22.
Snapshot of 2026-09-22 · 721 repos in the directory · every number on this page is measured against that date, not against today. What this measurement cannot tell you →