Dev tools · alternatives · 2026
24 alternatives to Customizable Pub/Sub Service, Scales to Thousands of Hosts
Highly scalable realtime pub/sub and RPC framework - socketcluster/scc-guide.md at master · SocketCluster/socketcluster
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Customizable Pub/Sub Service, Scales to Thousands of Hosts launched in 2016; newer entries below may have overtaken it.
- 1

Scalable open source pub/sub SDK with support for RPC, JWT authentication and Kubernetes — optimized for async/await
2016 · socketcluster.io · its alternatives →
- 2

- 3

A realtime server for the modern web
2016 · deepstream.io · its alternatives →
- 4

Easily build real-time apps that enables user collaboration
2022 · multiplayer.dev · its alternatives →
- 5MD
Hey HN, I’m an engineer at Supabase [0] and one of the creators of this demo. My team and I have been working hard to bring developers the next version of Supabase Realtime. The current version of Realtime [1] is a Change Data Capture (CDC) server for a PostgreSQL database that broadcasts changes via WebSockets to authorized subscribers. It’s written in Elixir/Phoenix. The server utilizes PostgreSQL’s logical replication functionality, which writes database changes to Write-Ahead Logging (WAL) segment files, and a replication slot, responsible for managing and retaining WAL files.…
2022 · multiplayer.dev · its alternatives →
- 6DA
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 →
- 7RT
2014 · scoutapp.github.io · its alternatives →
- 8

Sample real-time CRUD inventory tracking app built with SocketCluster - SocketCluster/sc-crud-sample
2015 · github.com · its alternatives →
- 9

Hey HN! Lev and Justin here, authors of PgDog (https://pgdog.dev/), a connection pooler, load balancer and database sharder for PostgreSQL. If you build apps with a lot of traffic, you know the first thing to break is the database. We are solving this with a network proxy that works without requiring application code changes or database migrations. Our post from last year: https://news.ycombinator.com/item?id=44099187 The most important update: we are in production. Sharding is used a lot, with direct-to-shard queries (one shard per query) working pretty much…
Feb 2026 · github.com · its alternatives →
- 10

CLI Native WebRTC Agent in Rust. Contribute to bitwhip/bitwhip development by creating an account on GitHub.
2024 · github.com · its alternatives →
- 11

Broadcast, Presence, and Postgres Changes via WebSockets - supabase/realtime
2020 · github.com · its alternatives →
- 12PD
PicoMQ is a Rust server for Durable Streams, built on Object Store. Cheap, URL-addressable, granular streams (create/append/read/long-poll/SSE), with Pico Protocol or Durable Streams Protocol as the facade. S3Stream is the stream storage primitive, used in AutoMQ, shipped as a Rust library. Coordination is a command log in Postgres.
Aug 2026 · picomq.com · its alternatives →
- 13

Realtime CRUD data management layer/plugin for SocketCluster using RethinkDB as the database - SocketCluster/sc-crud-rethink
2015 · github.com · its alternatives →
- 14

Build scalable realtime infrastructure for your apps
2018 · pusher.com · its alternatives →
- 15

Hi HN! We’re Yann, Edouard, and Bastien from Koyeb (https://www.koyeb.com/). We’re building a platform to let you deploy full-stack apps on high-performance hardware around the world, with zero configuration. We provide a “global serverless feeling”, without the hassle of re-writing all your apps or managing k8s complexity [1]. We built Scaleway, a cloud service provider where we designed ARM servers and provided them as cloud servers. During our time there, we saw customers struggle with the same issues while trying to deploy full-stack applications and APIs resiliently. As…
2023 · koyeb.com · its alternatives →
- 16

pubsub in <100 bytes. Contribute to hassanshaikley/pico-pubsub development by creating an account on GitHub.
2025 · github.com · its alternatives →
- 17

🚀 Realtime Monitoring solution for Node.js/Express.js apps, inspired by status.github.com, sponsored by https://dynobase.dev - RafalWilinski/express-status-monitor
2016 · github.com · its alternatives →
- 18

Full-stack CRUD, simplified, with SSOT TypeScript entities - remult/remult
2022 · github.com · its alternatives →
- 19RS
2015 · sse.getgin.io · its alternatives →
- 20

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 →
- 21

SCTP is a low level protocol focused on reliable packet transmission. Unlike hopelessly flinging packets from one device to another, it makes sure that the packets are correct using CRC, removes duplicate packets, and allows for packets to be sent in any order. Going into an established library, I thought that everything was already implemented and that there wasn't anything to do until I went through the existing issues and organized all the tasks and decided on an order. Sean DuBois (https://github.com/Sean-Der), one of the co-creators and current maintainers of Pion, an…
2025 · pion.ly · its alternatives →
- 22
tquic_client▲92A high-performance CLI to benchmark HTTP/3 servers
2024 · crates.io · its alternatives →
- 23SP
I built this pubsub module because I wanted a simple solution that uses only node. Why did I want pubsub? I wanted to build a complex app but segregate it into microservices that work together through event messages. I also wanted to use this method instead of node's built-in clustering for multiple instances. I've been running it for a few weeks now with several messages per second bugfree. I plan to use this setup for future apps as it reduces complexity of the code and allows me to restart/update one part of the app without interrupting the other parts. I would love to receive…
2022 · npmjs.com · its alternatives →
- 24

A real-time transcription project using React and socketio - GitHub - saharmor/realtime-transcription-playground: A real-time transcription project using React and socketio
2021 · github.com · its alternatives →
Also compare
- SocketCluster.io – flexible open-source real-time server with pub/sub alternatives
- SocketCluster alternatives
- Deepstream.io – open-source real-time server with pub/sub and data sync alternatives
- Realtime Multiplayer by Supabase alternatives
- Multiplayer Demo Built with Elixir alternatives
- DriftDB – an open source WebSocket backend for real-time apps 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 →