QuantConnect
Lean Algorithmic Trading Engine by QuantConnect (Python, C#)
dotnet
EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.
StockSharp
Algorithmic trading and quantitative trading open source platform to develop trading robots (stock markets, forex, crypto, bitcoins, and options).
OrchardCMS
Orchard Core is an open-source modular and multi-tenant application framework built with ASP.NET Core, and a content management system (CMS) built on top of that framework.
quartznet
Quartz Enterprise Scheduler .NET
ChilliCream
Welcome to the home of the Hot Chocolate GraphQL server for .NET, the Strawberry Shake GraphQL client for .NET and Nitro the awesome Monaco based GraphQL IDE.
siteserver
SSCMS 基于 .NET Core,能够以最低的成本、最少的人力投入在最短的时间内架设一个功能齐全、性能优异、规模庞大并易于维护的网站平台。链接是SSCMS推出的全新AI视频开源社区:献丑AI
smartstore
Open Source ASP.NET MVC Enterprise eCommerce Shopping Cart Solution
nunit
NUnit Framework
exceptionless
Exceptionless application
helix-toolkit
Helix Toolkit is a collection of 3D components for .NET.
YAFNET
🌐 YAF.NET - C# ASP.NET Forum
fbertram
The Open-Source Backtesting Engine/ Trading Simulator by Bertram Enterprises.