Collection of .net tools and frameworks
https://github.com/Squirrel/Squirrel.Windows - set of tools and a library, to completely manage both installation and updating your Desktop Windows application
https://github.com/AsynkronIT/protoactor-dotnet - Proto Actor - Ultra fast distributed actors for Golang and C# http://proto.actor https://github.com/akkadotnet/akka.net - Port of Akka actors for .NET http://getakka.net
https://github.com/Topshelf/Topshelf - An easy service hosting framework for building Windows services using .NET
https://www.appveyor.com/ - Continuous Delivery service for Windows (github, visual studio online integration)
https://github.com/KirillOsenkov/MSBuildStructuredLog - A logger for MSBuild that records a structured representation of executed targets, tasks, property and item values.
https://github.com/khellang/Scrutor - Register services using assembly scanning and a fluent API
https://github.com/appium/appium-dot-exe
http://storyteller.github.io/ - Solutions for creating robust, human readable acceptance tests for your .Net or CoreCLR system and a means to create "living" technical documentation.
https://github.com/TNG/ArchUnitNET - testing software architecture rules
https://github.com/BenMorris/NetArchTest - testing software architecture rules
https://github.com/smapiot/piral - Framework for next generation portals and web apps using micro frontends
https://github.com/MapsterMapper/Mapster - A fast, fun and stimulating object to object Mapper
https://github.com/StephenCleary/AsyncEx - A helper library for async/await.
https://github.com/0xd4d/dnSpy - open-source .NET assembly browser, editor, decompiler and debugger
https://github.com/dudikeleti/DumpMiner - tool for inspecting a .NET dump file or live process. The tool uses the ClrMD library. https://github.com/goldshtn/msos - Command-line environment a-la WinDbg for executing SOS commands without having SOS available.
https://wyam.io/ - highly modular and extremely configurable static content generator and toolkit.
https://github.com/dbelmont/ExpressionBuilder - Lambda dynamic builder
https://www.finbuckle.com/MultiTenant - A multitenancy library for ASP.NET Core
https://github.com/wojtpl2/ExtendedXmlSerializer
https://github.com/Fody/ - Extensible tool for weaving .net assemblies
https://github.com/rebus-org/Tababular/ - 📃 Simple monospace text table formatting
https://github.com/drewnoakes/figgle - ASCII banner generation for .NET
https://github.com/spectreconsole/spectre.console - create beautiful console apps
https://github.com/migueldeicaza/gui.cs - Console-based user interface toolkit for .NET applications
https://github.com/Tyrrrz/CliWrap - Library for running command line processes
https://github.com/reactiveui/refit - automatic type-safe REST library for .NET Core
https://github.com/sta/websocket-sharp
https://github.com/thangchung/awesome-dotnet-core - awsome .NET Core
https://github.com/quozd/awesome-dotnet - awsome .NET
https://github.com/Cybermaxs/awesome-analyzers - .NET analyzers
https://github.com/ironcev/awesome-roslyn - .NET analyzers
https://github.com/heynickc/awesome-ddd - DDD
https://github.com/thangchung/clean-code-dotnet - clean code recepies .NET
https://github.com/adamsitnik/awesome-dot-net-performance - Performance
https://github.com/binhnguyennus/awesome-scalability - Scalability
https://github.com/JanVanRyswyck/awesome-talks - Talks
https://github.com/amis92/csharp-source-generators Source generators
https://github.com/dariusz-wozniak/List-of-Testing-Tools-and-Frameworks-for-.NET - List of testing tools
https://xata.io/ Serverless Postgres
https://github.com/yangshun/tech-interview-handbook - Materials to help you rock your next coding interview
https://github.com/charlax/professional-programming - A collection of full-stack resources for programmers https://github.com/futurice/windows-app-development-best-practices - Windows App Development best practices