SharpDevelop 

SharpZipLib (#ziplib, formerly NZipLib) is a compression library for Zip, GZip, BZip2, and Tar written entirely in C# for .NET. It is implemented as an assembly (installable in the GAC), and thus can easily be incorporated into other projects (in any .NET language)

AvalonEdit is the WPF-based text editor used in SharpDevelop. There are three builds of AvalonEdit included in this package: .NET 4.0, 4.5 and .NET Core 3.0.

ICSharpCode.Decompiler is the decompiler engine used in ILSpy.

NRefactory supports analysis of C# source code: it includes a parser, abstract syntax tree, type system, semantic analysis (resolver), code completion, and several refactorings.

Analyzers and Code Fixes for Visual Studio 2017 (Roslyn-based). Intended for build integration. If you need Visual Studio integration only, please check out the VSIX (Visual Studio extension) from our Web site.

Text editor used in SharpDevelop 3.

A Designer Framework for WPF UIs

Sample code for AvalonEdit the WPF-based text editor used in SharpDevelop. Modify your App.xaml file so the StartupUri points to the AvalonEdit Sample window: StartupUri="/Samples/AvalonEdit/Window1.xaml"

Entity Framework is Microsoft's recommended data access technology for new applications.

Convert VB.NET to/from C# * Accurate: Full project context (through Roslyn) is used to get the most accurate conversion. * Actively developed: User feedback helps us continuously strive for a more accurate conversion. * Completely free and open source: Check out... More information

Command-line decompiler using the ILSpy decompilation engine

Please use Refactoring Essentials.

Sample code for the Text editor used in SharpDevelop 3.

T4MVC is a T4 template that generates strongly typed helpers for ASP.NET MVC.

A fast and customizable way to build parts of your .NET application via templates

A fast and customizable way to build parts of your .NET application via templates

A fast and customizable way to add controllers, views, and other items to your ASP.NET MVC application