Top 7 omnisharp Open-Source Projects

vscode-csharp

14 2,811 9.8 TypeScript

Official C# support for Visual Studio Code

Project mention: Why isn’t dotnet core popular among startups? | news.ycombinator.com | 2023-09-12

[1] https://github.com/dotnet/vscode-csharp/issues/527

omnisharp-roslyn

31 1,686 8.2 C#

OmniSharp server (HTTP, STDIO) based on Roslyn workspaces

Project mention: A Call for Developers – Jellyfin | news.ycombinator.com | 2023-10-02

SurveyJS

surveyjs.io sponsored

Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
omnisharp-vim

26 1,649 5.2 Vim Script

Vim omnicompletion (intellisense) and more for C#

Project mention: Ryujinx: Experimental Nintendo Switch Emulator written in C# | news.ycombinator.com | 2023-05-03

You can probably use omnisharp-vim (OmniSharp is the same tech that powers VS Code's C# experience).
https://github.com/OmniSharp/omnisharp-vim

omnisharp-extended-lsp.nvim

2 107 6.6 Lua

Extended 'textDocument/definition' handler for OmniSharp Neovim LSP (now also `textDocument/references`, `textDocument/implementation` and source generated files)
free-vscode-csharp

11 96 9.8 TypeScript

Free/Libre fork of the official C# extension for vscode

Project mention: A new F# compiler feature: graph-based type-checking | news.ycombinator.com | 2023-11-05

I only tried F# for few days, but it was a pleasant experience on both macos and linux.
dotnet CLI should take care of build process, it can even generate self-sufficient executable (that bundle parts of .NET in them). The infamous required XML boilerplate has also been cut down to near-zero.
My biggest gripe is that Microsoft's debugger is closed-source and proprietary (though free for users of official VSCode builds). There is open-source netcoredbg by Samsung, so you can use VSCod[e,ium] with https://open-vsx.org/extension/muhammad-sammy/csharp , but YMMV.

neovim-unity

1 58 8.1 Lua

[Not affiliated with Unity Technologies] Ready-to-use, pre-configured Neovim for game development using Unity game engine

Project mention: Lunarvim with the unity game engine ? | /r/neovim | 2023-06-02

Found this repo here that'd be a good place to start looking. You'll just have to look through the neovim-unity/lua directory to see how they expect it to be set up.

nano-ycmd

1 31 8.1 C

Modded GNU Nano using ycmd code completion and IntelliSense. The ycmd code completion support for nano is found in the ymcd-code-completion branch.
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).