Unfragile

Yarp.ReverseProxy is Microsoft's .NET reverse proxy library, and none of the candidate sources describe it, so no listed product can be confirmed as its replacement. The closest candidates that do a reverse-proxy job are mitmproxy and squid, but their sources describe debugging and caching proxies rather than an embeddable .NET reverse proxy, and Whistle (wproxy) mentions reverse proxying alongside debugging.

A question back: Do you need an embeddable .NET library in your ASP.NET application, or a standalone proxy server?

1
mitmproxymitmproxy.orgwebsite read, tools not yet checked
An interactive HTTPS proxy with an addon ecosystem, used for intercepting and modifying web traffic rather than as an embeddable .NET reverse proxy.
Website Docs
+9 community tools built for it
2
squidsquid-cache.orgwebsite read, tools not yet checked
A caching proxy for HTTP, HTTPS and FTP that also serves as a server accelerator, a related but not .NET-embeddable option.
Website Docs
3
Whistlewproxy.orgwebsite read, tools not yet checked
An HTTP, HTTP2, HTTPS and Websocket debugging proxy that supports reverse proxying among other features.
Website Docs

Sources

7mitmproxy - an interactive HTTPS proxymitmproxy.org · read 2026-10-29
9squid : Optimising Web Deliverysquid-cache.org · read 2026-10-29
10Whistlewproxy.org · read 2026-10-29

For agents: the 10 actions behind this answer

getRelayProxyConfig · LaunchDarkly REST API verified and signed
Get a single relay proxy configuration by ID.
yarl · yarl verified and signed
RPC · Grpc.AspNetCore verified and signed
dotnet · Testcontainers verified and signed
c-library · ruamel.yaml.clib verified and signed
yaml · strictyaml verified and signed
· mitmproxy website read, tools not yet checked
ASP.NET · Duende.IdentityServer verified and signed
· squid website read, tools not yet checked
· Wproxy website read, tools not yet checked
HTTP, HTTP2, HTTPS, Websocket debugging proxy

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