uNetworking

uWebSockets

C++2016–2025

uNetworking / uWebSockets

uWebSockets

Simple, secure & standards compliant web server for the most demanding of applications

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33Distinct people

46Mentions

1Explicit recommenders

19KGitHub stars

REPOSITORY AT A GLANCE

What to know before exploring

What it is

Simple, secure & standards compliant web server for the most demanding of applications

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

Just WebSockets in a C++ server. I have my own implementation that I wrote from the scratch because when I started µWS [1] didn't even exist yet. I recommend their…

Matheus28 used a recommendation phrase. One indexed comment matches. This is a phrase match, not a verdict.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

unetworking/uwebsockets.js · linked in 3 of the same discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 12:45:45 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year46 dated mentions

Observed mentions: 2016-05-17 14:09:05 UTC to 2025-11-17 21:05:08 UTC.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges

UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
2016	2016-01-01 00:00:00 UTC	2017-01-01 00:00:00 UTC	14	6	8
2017	2017-01-01 00:00:00 UTC	2018-01-01 00:00:00 UTC	7	1	6
2018	2018-01-01 00:00:00 UTC	2019-01-01 00:00:00 UTC	1	0	1
2019	2019-01-01 00:00:00 UTC	2020-01-01 00:00:00 UTC	2	0	2
2020	2020-01-01 00:00:00 UTC	2021-01-01 00:00:00 UTC	1	1	0
2021	2021-01-01 00:00:00 UTC	2022-01-01 00:00:00 UTC	4	0	4
2022	2022-01-01 00:00:00 UTC	2023-01-01 00:00:00 UTC	12	1	11
2023	2023-01-01 00:00:00 UTC	2024-01-01 00:00:00 UTC	2	0	2
2024	2024-01-01 00:00:00 UTC	2025-01-01 00:00:00 UTC	0	0	0
2025	2025-01-01 00:00:00 UTC	2026-01-01 00:00:00 UTC	3	0	3

What Hacker News says

14 sources

Matheus28·Dec 27, 2016Recommendation phrase

Just WebSockets in a C++ server. I have my own implementation that I wrote from the scratch because when I started µWS [1] didn't even exist yet. I recommend their implementation for anyone planning on implementing a websocket server in C++. [1] https://github.com/uWebSockets/uWebSockets

In WebRTC: the future of web games

lossolo·Dec 20, 2016

"real-time apps at scale" and socket.io ? I don't think so. If you want to compare socket.io with something that works on scale look at uWebSockets[1] which is around 50 times faster and lightweight than socket.io is. https://github.com/uWebSockets/uWebSockets

In Show HN: Razorframe – A Node.js module for empowering real-time apps at scale

alexhultman·Nov 9, 2016Submission

Why you should never use Socket.IO

41 points · Open discussion

alexhultman·Oct 25, 2016Submission

uWebSockets 0.11.0

7 points · Open discussion

alexhultman·Oct 5, 2016Submission

uWebSockets 0.10.0

123 points · Open discussion

wolframhempel·Sep 21, 2016

We are working with Alex,creator of µWebSockets (https://github.com/uWebSockets/uWebSockets) on moving all connectivity and networking aspects to low level C

In Deepstream.io – Open Realtime Server

alexhultman·Sep 11, 2016Submission

uWebSockets 0.9.0

73 points · Open discussion

onestone·Sep 3, 2016

Should have used https://github.com/uWebSockets/uWebSockets for Node.js, if performance was the objective.

In Websocket Shootout: Clojure, C++, Elixir, Go, Node.js, and Ruby

_e3th·Aug 22, 2016Submission

Node.js: uWebSockets 0.8.0 adds Windows support

34 points · Open discussion

moron4hire·May 20, 2016

You say you support Windows, but when I try to use it, it gives me an error Error: Compilation of µWebSockets has failed and there is no pre-compiled binary available for your system. Please install a supported C++ compiler and reinstall the module 'uws'. A) Which are the supported compilers? B) This issue makes it seem like that wouldn't matter, anyway? https://github.com/alexhultman/uWebSockets/issues/72

In uWebSockets: Scalable WebSocket server library for Node.js and C++11

justsaysmthng·May 20, 2016

In https://github.com/alexhultman/uWebSockets/blob/master/src/u... What's the deal with delete [] (char *) head; where `head` is of type `struct Message` ? Is this some kind of performance trick ?... Otherwise it looks kind of suspicious..

In uWebSockets: Scalable WebSocket server library for Node.js and C++11

alexhultman·May 20, 2016

I get this question quite often, here is a good start: https://github.com/alexhultman/uWebSockets/issues/56

In uWebSockets: Scalable WebSocket server library for Node.js and C++11

_e3th·May 20, 2016Submission

uWebSockets: Scalable WebSocket server library for Node.js and C++11

108 points · Open discussion

lpinca·May 17, 2016

I wonder what was the WebSocket module used in Node. There is this new module https://github.com/alexhultman/uWebSockets which is very promising.

In From Node.js to Go