Latest release: 5.2.0 (December, 21, 2025)
open Falco
open Microsoft.AspNetCore.Builder
let wapp = WebApplication.Create()
wapp.Run(Response.ofPlainText "Hello world")A toolkit for building functional-first, full-stack web applications using F#.
- Built on the high-performance components of ASP.NET Core.
- Seamlessly integrates with existing .NET Core middleware and libraries.
- Designed to be simple, lightweight and easy to learn.
- Simple and powerful routing API.
- Uniform API for accessing any request data.
- Native F# view engine.
- Asynchronous request handling.
- Authentication and security utilities.
- Built-in support for large uploads and binary responses.
The best way to get started is by visiting the documentation. For questions and support, please use discussions. For chronological updates, refer to the changelog.
Kestrel has been a game changer for the .NET web stack. In the animal kingdom, "Kestrel" is a name given to several members of the falcon genus. Also known as "Falco".
There's an issue for that.
Licensed under Apache License 2.0.
