Life & fun · alternatives · 2026

24 alternatives to Erlbus – scalable pub/sub message bus written in Erlang

Simple and scalable pub/sub message bus written in Erlang

Erlbus is an open-source pub/sub message bus built with Erlang that simplifies messaging between systems. It targets developers who need reliable message distribution with high performance and scalability. The project… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Erlbus – scalable pub/sub message bus written in Erlang launched in 2015; newer entries below may have overtaken it.

1. 1
   Visual flow-based programming for Erlang, inspired by Node-RED▲243

   Hi There, Erlang-RED has been my project for the last couple of months and I would love to get some feedback from the HN community. The idea is to take advantage of Erlangs message passing and low overhead processes to have true concurrency in Node-RED flows. Plus also to bring low-code visual flow-based programming to Erlang.

   2025 · github.com · its alternatives →

2. 2
   Leptus – Erlang REST framework that runs on top of Cowboy web server▲73

   The Erlang REST framework. Contribute to sinasamavati/leptus development by creating an account on GitHub.

   2018 · github.com · its alternatives →

3. 3
   Novu▲573

   The open-source notification infrastructure for developers

   2023 · novu.co · its alternatives →

4. 4SO
   Switchboard – open-source email processing in Erlang▲92

   2014 · switchboard.spatch.co · its alternatives →

5. 5
   Condor – A library for building scalable TCP servers in Erlang▲65

   A minimal library for building scalable TCP servers in Erlang - sinasamavati/condor

   2018 · github.com · its alternatives →

6. 6
   Bruno ▲457

   Bruno is the Git-native API client for REST, GraphQL, gRPC and Websocket. A local and open-source solution to Postman. Fast, developer-first, and no cloud syncing.

   2025 · usebruno.com · its alternatives →

7. 7
   Switchboard▲99

   Open-source email processing built in Erlang

   2014 · its alternatives →

8. 8
   WasmGPT – “ChatGPT” in the browser, no WebGPU and no server needed▲185

   Using threaded emscripten to speed up the generation and offload the main loop. No SIMD or other optimizations. Might work faster with #enable-experimental-webassembly-features enabled. Tested in x86 Chrome and Firefox, Apple Silicon Safari Run it yourself: https://github.com/lxe/ggml/tree/wasm-demo Thanks, https://github.com/ggerganov/ggml,

   2023 · lxe.co · its alternatives →

9. 9
   SocketCluster.io – flexible open-source real-time server with pub/sub▲217

   Scalable open source pub/sub SDK with support for RPC, JWT authentication and Kubernetes — optimized for async/await

   2016 · socketcluster.io · its alternatives →

10. 10
    An open-source notification infrastructure▲170

    The <Inbox /> infrastructure for modern products. Novu has 98 repositories available. Follow their code on GitHub.

    2023 · github.com · its alternatives →

11. 11CA
    Crazierl – An Erlang Operating System▲72

    Crazierl is an experimental&#x2F;hobby operating system based around BEAM. I've linked the browser based demo; I don’t recommend using a phone; it does work, slowly, on the phones I tested, but it’s very awkward to use. You can share a link with a hashtag with your friends and click the consent checkbox, and it (should) link up into dist and I’ve also included a chat application you can start with chat:start(). (quit chat with &#x2F;quit, or use the shell menu with ctrl-g to switch between shells etc). The browser demo relies on the v86 javascript x86 virtual machine. You can also run…

    Mar 2026 · crazierl.org · its alternatives →

12. 12
    Damocles – An Erlang library for distribution testing▲43

    An Erlang library for generating adversarial network conditions for QAing distributed applications/systems on a single Linux box. - lostcolony/damocles

    2015 · github.com · its alternatives →

13. 13
    Walrus – a Kafka alternative written in Rust▲160

    🦭 Distributed log streaming engine built from first principles - nubskr/walrus

    Dec 2025 · github.com · its alternatives →

14. 14
    Liftbridge – Lightweight, fault-tolerant message streams▲147

    Lightweight, fault-tolerant message streams

    2020 · liftbridge.io · its alternatives →

15. 15
    Erlang REST framework▲96

    Erlang REST framework. Contribute to fbeline/rooster development by creating an account on GitHub.

    2017 · github.com · its alternatives →

16. 16
    Platypus 3.0 – Server monitoring with websockets▲42

    Large-scale server monitoring application written in Golang - gmemstr/Platypus

    2019 · github.com · its alternatives →

17. 17
    A chat client built on git▲81

    Contribute to staab/git-chat development by creating an account on GitHub.

    2016 · github.com · its alternatives →

18. 18BA
    Bridge, a cross-language RPC messaging system▲105

    2012 · flotype.com · its alternatives →

19. 19
    Solidis – Tiny TS Redis client, no deps, for serverless▲71

    Hey everyone! Over the past two years I threw myself back into full-time engineering with a simple goal: write code that gives back to the community. After a lot of late-night FOMO (“AI will do it all for us, right?”) and some painful production incidents, I finally turned my weekend project into an open-source library. [ What is Solidis? ] - Super-light (< 30 KB) RESP2&#x2F;RESP3 client with zero runtime deps and first-class ESM&#x2F;CJS support. - Fully tree-shakable – import only the commands you need. - Written with SOLID principles & full TypeScript typings for every command. - Designed…

    2025 · github.com · its alternatives →

20. 20
    Erlang code generator for Idris 2▲98

    Erlang code generator for Idris 2. Contribute to christian-public/Idris2-Erlang development by creating an account on GitHub.

    2020 · github.com · its alternatives →

21. 21
    Iceoryx2 – Fast IPC Library for Rust, C++, and C▲122

    Hello everyone, Today we released iceoryx2 v0.4! iceoryx2 is a service-based inter-process communication (IPC) library designed to make communication between processes as fast as possible - like Unix domain sockets or message queues, but orders of magnitude faster and easier to use. It also comes with advanced features such as circular buffers, history, event notifications, publish-subscribe messaging, and a decentralized architecture with no need for a broker. For example, if you're working in robotics and need to process frames from a camera across multiple processes, iceoryx2 makes it…

    2024 · ekxide.io · its alternatives →

22. 22IB
    IPC between multiple Java processes/JVMs with nanosecond latency▲114

    2015 · mappedbus.io · its alternatives →

23. 23OT
    OTPCL – Tcl-Flavored Erlang▲46

    Bitbucket Cloud is a Git-based code and CI/CD tool optimized for teams using Jira.

    2019 · bitbucket.org · its alternatives →

24. 24
    Erlmacs – a script to update your .emacs file for Erlang development▲44

    erlmacs automatically configures and updates your .emacs file with support for the emacs mode that is included with Erlang&#x2F;OTP. It frees you from having to locate the installation directory of Erlang&#x2F;OTP and its bundled emacs mode. It is an escript that only depends upon Erlang&#x2F;OTP and Emacs. Note: There is not much in the way of error checking at this moment, but it does make a backup of your .emacs files before any destructive operations.

    2023 · github.com · its 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 →