Top 5 C reverse-proxy Projects

NGINX Unit

16 5,077 9.5 C

NGINX Unit is a lightweight and versatile open-source web app server that has three core capabilities. It is a HTTP reverse proxy, a web server for static media assets, and an application server that can natively execute application code in seven different languages.

Project mention: Litestar – powerful, flexible, and highly performant Python ASGI framework | news.ycombinator.com | 2024-02-26

haproxy

16 4,445 9.9 C

HAProxy Load Balancer's development branch (mirror of git.haproxy.org)

Project mention: HAProxy is not affected by the HTTP/2 Rapid Reset Attack (CVE-2023-44487) | news.ycombinator.com | 2023-10-11

I wanted to try it out just now but hit a roadblock immediately - it cannot automatically obtain and maintain TLS certificates. You have to use an external client (e.g. acme.sh), set up a cron to check/renew them, and poke HAProxy to reload them if necessary. I'm way past doing this in 2023.
https://www.haproxy.com/blog/haproxy-and-let-s-encrypt
https://github.com/haproxy/haproxy/issues/1864

WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
varnish-cache

5 3,497 9.7 C

Varnish Cache source code repository
angie

10 1,057 9.3 C

Angie - drop-in replacement for Nginx

Project mention: Nginx fork with builtin auto HTTPS certificate obtaining from Let's Encrypt | news.ycombinator.com | 2024-03-29

32 user: Dmitry Volyntsev
Source: https://hg.nginx.org/nginx/
Valentin, Ruslan and Vladimir currently are working on Angie.
Igor actually doesn't contribute to nginx since 2012... there are only few small commits after these dates, most of his contributions are between 2002 and 2012.
Maxim now works on freenginx alone. And here is a response from Angie developer about consolidation with freenginx: https://github.com/webserver-llc/angie/issues/74 - why it won't happen.

iwnet

5 171 6.7 C

Pure C Asynchronous HTTP/IO library providing websockets, SSL, routing, reverse proxy.
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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).