Top 9 Go Http3 Projects

Caddy

402 53,718 9.5 Go

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

Project mention: Why Does Windows Use Backslash as Path Separator? | news.ycombinator.com | 2024-04-24

No, look at the associated unit test: https://github.com/caddyserver/caddy/blob/c6eb186064091c79f4...
If that test fails we could serve PHP source code instead of having it be evaluated, a major security flaw.

quic-go

28 9,452 9.5 Go

A QUIC implementation in pure Go

Project mention: "Every time a new Go release happened, the package stopped building, and the authors had to add a new file with a new //go:build line, and then the entire ecosystem of packages with that as a dependency had to explicitly update to the new version" -- Go itself | /r/programmingcirclejerk | 2023-12-06

Ecosystem-breaking packages happen more often than I thought possible in Go. The other one is https://github.com/quic-go/quic-go, which needs to explicitly support a Go version because it relies on some obscure internal of the language around crypto or some shit.

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.
Centrifugo

31 7,914 9.0 Go

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

Project mention: WebSockets vs. Server-Sent-Events vs. Long-Polling vs. WebRTC vs. WebTransport | news.ycombinator.com | 2024-03-20

Hello, I am author of https://github.com/centrifugal/centrifugo. Our users can choose from WebSocket, EventSource, WebTransport (experimental stabilize in the future). WebRTC is out of scope as the main purpose is central server based real-time json/binary messaging, and WebRTC makes things much more complex since it shines for peer-to-peer and rich media communications.
What I'd like to add is that Centrifugo also supports HTTP-streaming – not mentioned by the OP – but this is a transport which has advantages over Eventsource - like possibility to send POST body on initial request from web browser (with SSE you can not), it supports binary, and with Readable Streams browser API it's widely supported by modern browsers.
Another thing I'd like to mention about Centrifugo - it supports bidirectional WebSocket fallbacks with EventSource and HTTP-streaming, and does this without sticky sessions requirement. I guess nobody else have this at this point. See https://centrifugal.dev/blog/2022/07/19/centrifugo-v4-releas.... Which solves one more practical concern. Sticky sessions is an optimization in Centrifugo case, not a requirement.
If you are interested in topic, we also have a post about WebSocket scalability - https://centrifugal.dev/blog/2020/11/12/scaling-websocket - it covers some design decisions made in Centrifugo.

vulcain

2 3,457 7.2 Go

Fast and idiomatic client-driven REST APIs.

Project mention: Fast and idiomatic client-driven REST APIs | news.ycombinator.com | 2023-10-19

gost

1 3,404 8.7 Go

GO Simple Tunnel - a simple tunnel written in golang (by go-gost)
algernon

1 2,630 9.3 Go

Small self-contained pure-Go web server with Lua, Teal, Markdown, Ollama, HTTP/2, QUIC, Redis and PostgreSQL support

Project mention: Web Server with Support for HTTP, Lua, Markdown, JSX, BoltDB, Redis, PostgreSQL | news.ycombinator.com | 2024-03-11

kawipiko

6 393 3.5 Go

kawipiko -- blazingly fast static HTTP server -- focused on low latency and high concurrency, by leveraging Go, `fasthttp` and the CDB embedded database
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.
fileless-xec

1 169 3.9 Go

Stealth dropper executing remote binaries without dropping them on disk .(HTTP3 support, ICMP support, invisible tracks, cross-platform,...)
gopayloader

4 15 8.0 Go

HTTP/S benchmark/load testing cross-platform tool with optional jwt generation - supports HTTP/1.1, HTTP/2, HTTP/3

Project mention: Gopayloader - New golang HTTP load testing tool. 235% quicker than k6 | /r/programming | 2023-04-27

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).