# aspnet/KestrelHttpServer

[Archived] A cross platform web server for ASP.NET Core. Project moved to https://github.com/aspnet/AspNetCore

Repository: https://github.com/aspnet/KestrelHttpServer
Canonical: https://ross.abutalabs.com/products/kestrelhttpserver
Language: C#
License: Apache-2.0
License Family: permissive
Topics: aspnet-product
Archived: true
Last push: 2018-11-22T00:09:49+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4478, "days_push": 2842, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2630, forks 511 (observed 2026-08-28T04:07:05.589138+00:00)

## What it is
KestrelHttpServer is the cross-platform web server for ASP.NET Core, written in C#. The repository has been archived and development moved to the aspnet/AspNetCore repo.

## Use cases
- run a cross-platform web server for ASP.NET Core apps
- host ASP.NET Core applications on Linux or macOS
- serve HTTP requests in a .NET web application
- build from source a lightweight web server for .NET

## When to choose
- you need the historical Kestrel source for reference or archaeology
- you want to study how ASP.NET Core's original web server was implemented

## When to avoid
- you want an actively maintained Kestrel - use aspnet/AspNetCore instead
- you need a production web server for new ASP.NET Core projects
- you need bug fixes or security patches

## Facets
- artifact type: application
- maturity: abandoned
- function: http-server, web-framework
- domain: web-development, backend, cross-platform
- platform: cross-platform, dotnet, windows
- tags: aspnet-core, kestrel, archived, csharp, web-server, linux, macos

## Member repositories
- aspnet/KestrelHttpServer (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:05.589138+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:19:38.299447+00:00, confidence not recorded.
  - readme: https://github.com/aspnet/KestrelHttpServer (fetched 2026-08-28T04:07:05.589138+00:00, sha 12809f81381a)
- Data as of 2026-08-30T08:39:29.467469+00:00.