Open Source Projects in C#
Godot
Open-source game engine
★ 106,229 Updated: Jan 2026 Status: Slowing
Jellyfin
Stream your media from your own server.
★ 48,196 Updated: Feb 2026 Status: Slowing
ShareX
The ultimate open-source screen capture, file sharing and productivity tool.
★ 39,874 Updated: Oct 2026 Status: Active
Uno Platform
Build native apps for Mobile, Desktop, and WebAssembly with C# and XAML.
★ 10,062 Updated: Oct 2026 Status: Active
Flax Engine
Multi-platform game engine
★ 6,598 Updated: Jan 2026 Status: Slowing
Remotely
A remote control and remote scripting solution, built with .NET 8, Blazor, and SignalR.
★ 5,081 Updated: Dec 2024 Status: Slowing
Greenshot
Light-weight screenshot software for Windows.
★ 4,784 Updated: Feb 2026 Status: Slowing
KitchenOwl
Smart grocery planning and recipe coordination
★ 3,036 Updated: Jan 2026 Status: Slowing
Myrtille
HTML5 gateway for RDP and SSH
★ 1,954 Updated: Mar 2024 Status: Inactive
FeatBit
Open-source feature flag service
★ 1,728 Updated: Feb 2026 Status: Slowing
nopCommerce
Free open-source ASP.NET Core eCommerce platform
Status: Unknown
O
ONLYOFFICE
Collaborative office suite that plays perfectly with Microsoft formats
Status: Unknown
Bitwarden
Open-source password manager
Status: Unknown