C# Interop

Open-source C# projects categorized as Interop

Top 14 C# Interop Projects

  1. CppSharp

    Tools and libraries to glue C/C++ APIs to high-level languages

  2. InfluxDB

    InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

    InfluxDB logo
  3. Vanara

    A set of .NET libraries for Windows implementing PInvoke calls to many native Windows APIs with supporting wrappers.

  4. bootsharp

    Use C# in web apps with comfort

    Project mention: A Vision for WebAssembly Support in Swift | news.ycombinator.com | 2025-04-05

    C# does pretty well as far as WASM support goes, unlike Go which is abysmal :)

    https://bootsharp.com/guide/llvm / https://github.com/elringus/bootsharp

  5. vst.net

    Virtual Studio Technology (VST) for .NET. Plugins and Host applications.

    Project mention: Lumix - a .NET open source ableton like DAW | dev.to | 2025-02-27

    VST's plugins support is possible thanks to the VST.NET library, which allowed to load and process audio samples through vst2 plugins. The daw also has support for creation of built in plugins (such as the "Utility" and "SimpleEq" plugins which are already included) using imgui for the UI rendering, just like Ableton has its own plugins.

  6. DirectN

    Direct interop Code for .NET Framework, .NET Core and .NET 5+ : DXGI, WIC, DirectX 9 to 12, Direct2D, Direct Write, Direct Composition, Media Foundation, WASAPI, CodecAPI, GDI, Spatial Audio, DVD, Windows Media Player, UWP DXInterop, WinUI3, etc.

  7. terrafx.interop.windows

    Interop bindings for Windows.

  8. Conari

    🧬 One-touch unmanaged memory, runtime dynamic use of the unmanaged native C/C++ in .NET world, related P/Invoke features, and …

  9. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
  10. League-of-Legends-Bot

    League of legends bot is a pixel bot for League Of Legends 10.19, written in C# .NET using image processing , and dependency injection (Pattern Scripting)

  11. LegacyWrapper

    LegacyWrapper uses a x86 wrapper to call legacy dlls from a 64 bit process (or vice versa).

  12. Biohazrd

    A framework for automatically generating binding wrappers for C/C++ libraries

  13. eagle

    Eagle (Extensible Adaptable Generalized Logic Engine) is a scripting language that belongs to the Tcl family of languages. It is interpreted, dynamically typed, and cross-platform. It was designed to act as a "glue language" and integrate easily into existing systems written for the Common Language Runtime (CLR).

    Project mention: Eagle: Extensible Adaptable Generalized Logic Engine for the CLR | news.ycombinator.com | 2024-12-30
  14. SUBSTitute

    A GUI for mapping directories to virtual drives (see SUBST command). (by sungaila)

  15. terrafx.interop.d3d12memoryallocator

    Interop bindings for D3D12MemoryAllocator

  16. Panlingo

    Collection of language detection libraries for .NET: FastText, CLD2, CLD3, MediaPipe, Lingua, Whatlang

    Project mention: whatlanggo VS Panlingo - a user suggested alternative | libhunt.com/r/whatlanggo | 2025-02-03

    Whatlang wrapper for .NET

  17. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    SaaSHub logo
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).

C# Interop discussion

Log in or Post with

C# Interop related posts

  • Win API programming C# Books?

    1 project | /r/csharp | 10 Oct 2022
  • Show HN: My small program from 2007 that gave Internet Explorer tabs

    3 projects | news.ycombinator.com | 10 Jun 2022
  • where to start audio programming d a w and audio plugins

    1 project | /r/learnprogramming | 11 Apr 2022
  • Is this program safe?

    1 project | /r/github | 8 Mar 2022
  • Fixing my BF1942 woes with Win32 APIs

    4 projects | dev.to | 20 Jan 2022
  • How to interact with Win 11 API?

    2 projects | /r/csharp | 12 Jan 2022
  • DotNetJS: Use C# in any JavaScript environment: browsers, Node.js, VS Code web extensions, etc.

    1 project | /r/csharp | 14 Dec 2021
  • A note from our sponsor - InfluxDB
    www.influxdata.com | 16 May 2025
    InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now. Learn more →

Index

What are some of the best open-source Interop projects in C#? This list will help you:

# Project Stars
1 CppSharp 3,229
2 Vanara 1,890
3 bootsharp 725
4 vst.net 431
5 DirectN 341
6 terrafx.interop.windows 283
7 Conari 263
8 League-of-Legends-Bot 156
9 LegacyWrapper 81
10 Biohazrd 61
11 eagle 30
12 SUBSTitute 21
13 terrafx.interop.d3d12memoryallocator 19
14 Panlingo 9

Sponsored
InfluxDB – Built for High-Performance Time Series Workloads
InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com

Did you know that C# is
the 10th most popular programming language
based on number of references?