YARP is a toolkit for building high-performance HTTP reverse proxy applications in .NET.
YARP addresses the need for organizations to deploy reverse proxies tailored to their specific infrastructure and operational requirements. Rather than offering a monolithic proxy server, the project provides a library and extensible pipeline designed around customization as a primary use case. The toolkit leverages ASP.NET and .NET infrastructure to deliver performance while allowing developers to programmatically manage configuration, integrate with their own backend systems, and modify proxy behavior without rebuilding from source or resorting to scripting.
Teams should adopt YARP when they need a reverse proxy that can be deeply customized for their deployment scenario and integrated into a .NET ecosystem. The project suits organizations already invested in .NET who want to avoid the operational overhead of managing a separate proxy binary or the limitations of configuration-file-only approaches. YARP is particularly valuable for teams managing multiple services with varying proxy requirements, since the in-process customization model allows each deployment to adapt the proxy behavior to its own needs without forking the codebase.
The project maintains a structured release cadence with regular updates published through the releases page, and developers can access daily builds for early testing of unreleased features. Development activity shows consistent attention to build infrastructure and developer experience, with documented setup scripts for Windows, Linux, and macOS that automate SDK provisioning and environment configuration. The team actively responds to build and development issues, treating problems with build scripts or tooling as blocking concerns that warrant immediate fixes.
