Http3 GitHub Repositories (2026) · Open Source Tools

Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. Set up once and forever.

Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS

GO Simple Tunnel - a simple tunnel written in golang

🥧 Savoury implementation of the QUIC transport protocol and HTTP/3

A production-ready QUIC implementation in pure Go

Neqo, the Mozilla Firefox implementation of QUIC in Rust

This package allows OkHttp and Retrofit users to use Cronet as their transport layer, benefiting from features like QUIC/HTTP3 support or connection migration.

A modern, high-performance web server and reverse proxy built on Pingora Cloudflare Pingora's raw performance, wrapped in Caddy's minimalist developer experience

Small self-contained pure-Go web server with Lua, Teal, Markdown, HTTP/2, QUIC, Redis, TypeScript, npm-less React 19, SQLite, and PostgreSQL support ++

Apache Traffic Server™ is a fast, scalable and extensible HTTP/1.1 and HTTP/2 compliant caching proxy server.

Multi-transport Rust web framework: HTTP/1.1, HTTP/2, HTTP/3, WebSocket, SSE, gRPC, TCP/UDP and Unix sockets behind one router, on Tokio or Compio.

Async network clients, down to the wire

TLSPROXY is a TLS termination proxy that provides automatic TLS encryption for various network services. It supports SSO, client authentication, and can act as a web server or reverse proxy.

AI and cloud-native proxy server and framework

Pure JavaScript QUIC/HTTP3 implementation for Node.js

Getman - Open Source Postman Lightweight Alternative written in Rust.

Headless Chromium-based web performance metrics collector and monitoring tool