Life & fun · alternatives · 2026
24 alternatives to 2M fully loaded concurrent WebSockets
oatpp benchmark for 2 Million fully-loaded concurrent websocket connections.
This is a benchmark demonstration of the oatpp framework managing 2 million concurrent WebSocket connections simultaneously. The server listens across 100 ports and echoes back client messages with a prepended… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. 2M fully loaded concurrent WebSockets launched in 2019; newer entries below may have overtaken it.
- 15C
oatpp benchmark for 5 Million fully-loaded concurrent websocket connections.
2019 · oatpp.io · its alternatives →
- 2
Websocket Client and Server for benchmarks with Millions of concurrent connections. - oatpp/benchmark-websocket
2019 · github.com · its alternatives →
- 3
Articles in this series Part I. Iterative ServersPart II. Forking ServersPart III. Pre-forking ServersPart IV. Threaded ServersPart V. Pre-threaded ServersPart VI: poll-based serverPart VII: epoll-…
2019 · unixism.net · its alternatives →
- 4DA
Hey HN! I’ve written a bunch of WebSocket servers over the years to do simple things like state synchronization, WebRTC signaling, and notifying a client when a backend job was run. I realized that if I had a simple way to create a private, temporary, mini-redis that the client could talk to directly, it would save a lot of time. So we created DriftDB. In addition to the open source server that you can run yourself, we also provide https://jamsocket.live where you can use an instance we host on Cloudflare’s edge (~13ms round trip latency from my home in NY). You may have seen my…
2023 · driftdb.com · its alternatives →
- 5
:zap: Optimizing Python code by implementing a C++ extension - szabolcsdombi/optimization-demo
2023 · github.com · its alternatives →
- 6
Scalable open source pub/sub SDK with support for RPC, JWT authentication and Kubernetes — optimized for async/await
2016 · socketcluster.io · its alternatives →
- 7
An demo app for lattice-core. Contribute to jasonl99/card_game development by creating an account on GitHub.
2017 · github.com · its alternatives →
- 8
Go HTTP request router and web framework benchmark - julienschmidt/go-http-routing-benchmark
2014 · github.com · its alternatives →
- 9
- 10
A minimal library for building scalable TCP servers in Erlang - sinasamavati/condor
2018 · github.com · its alternatives →
- 11
🌱Light and powerful C++ web framework for highly scalable and resource-efficient web application. It's zero-dependency and easy-portable. - oatpp/oatpp
2018 · github.com · its alternatives →
- 12
Nov 2025 · iggy.apache.org · its alternatives →
- 13
An open source cybersecurity protocol for syncing decentralized graph data. - Create new page · amark/gun Wiki
2016 · github.com · its alternatives →
- 14
IPFS▲84Peer-to-peer hypermedia protocol for Blockchain powered web
2015 · about.ipfs.io · its alternatives →
- 15
An ultra-fast, single-binary MCP server written in Rust as a lightweight alternative to Node.js/Python. - StamManif/mcp-stama
Aug 2026 · github.com · its alternatives →
- 16
Hi HN, I’m a recent CS graduate. During the past few months I wrote BinaryRPC, an open-source RPC framework in modern C++20 focused on low-latency, binary WebSocket messaging. Why I built it * Wanted first-class session support, pluggable QoS levels and a simple middleware chain (global, specific, multi handler) without extra JSON/XML parsing. * Easy developer experience A quick feature list * Binary WebSocket frames – minimal overhead * Built-in session layer (login / reconnect / heartbeat) * QoS1 / QoS2 with automatic ACK & retry * Plugin system – rooms, msgpack, etc.…
2025 · github.com · its alternatives →
- 17
A full featured, stand-alone, high-performance HTTP server and client written entirely in plain Java - FusionAuth/java-http
2022 · github.com · its alternatives →
- 18
Collection of oatpp WebSocket examples. Contribute to oatpp/example-websocket development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 19
Asynchronous C networking library with HTTP server, WebSockets, reverse proxy, HTTP/2 gRPC client, TLS and event loop. - Softmotions/iwnet
2022 · github.com · its alternatives →
- 20
Check out our new project to add some insight into OOM kill events for Go programs. Source code: https://github.com/parca-dev/oomprof/ Description of how it was put together: https://www.polarsignals.com/blog/posts/2025/08/13/oomprof
2021 · polarsignals.com · its alternatives →
- 21
Fast Parallel Async HTTP/SSH/TCP/UDP/Ping Client Java Library. Aggregate 100,000 APIs & send anywhere in 20 lines of code. Ping/HTTP Calls 8000 servers in 12 seconds. (Akka) www.parallec.io - eBay/parallec
2015 · github.com · its alternatives →
- 22
A Go library that implements Consistent Hashing and Consistent Hashing With Bounded Loads. - lafikl/consistent
2017 · github.com · its alternatives →
- 23
This is based on an approach I made for a very high performance message and video multiplexing server. The project died, but I'm glad I get to share the a basic version with some http test code now. I admit this is the second time I've tried to show this off here today; I posted earlier but it got lost when no-one was watching :(
2011 · github.com · its alternatives →
- 24
An open source cybersecurity protocol for syncing decentralized graph data. - Create new page · amark/gun Wiki
2016 · github.com · its alternatives →
Also compare
- 5M Concurrent WebSockets alternatives
- Tool for WebSocket benchmarks with Millions of concurrent connections alternatives
- ZeroHTTPd: A web server to teach Linux performance, with benchmarks alternatives
- DriftDB – an open source WebSocket backend for real-time apps alternatives
- Python can make 3M+ WebSocket keys per second alternatives
- SocketCluster.io – flexible open-source real-time server with pub/sub alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →