RMQTT Broker by rmqtt
MQTT Server/MQTT Broker - Scalable Distributed MQTT Message Broker for IoT in the 5G Era
About RMQTT Broker
From the project's README at github.com/rmqtt/rmqtt. Lightly cleaned for readability; for the full source see the upstream repo.
[](https://deepwiki.com/rmqtt/rmqtt) [](https://crates.io/crates/rmqtt) [](https://docs.rs/rmqtt/latest/rmqtt/)
RMQTT broker is a fully open source, highly scalable, highly available distributed MQTT messaging broker for IoT, M2M and mobile applications that can handle millions of concurrent clients on a single service node. Features 100% Rust safe code; Based on tokio; MQTT v3.1, v3.1.1 and v5.0 protocols support; QoS0, QoS1, QoS2 message support; Offline message support; Retained message support; Last Will message support; Distributed cluster; Built-in AUTH/ACL; HTTP AUTH/ACL; JWT AUTH/ACL; [WebHook](./docs/e
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 940 | github.com/rmqtt/rmqtt |
| GitHub forks | 112 | github.com/rmqtt/rmqtt |
| Docker Hub pulls | 36k | hub.docker.com / rmqtt |
| CRATES downloads (last month) | 3.2k | rmqtt |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 5.2 years | since Mar 2021 |
| Last commit | 5 days ago | May 2, 2026 |
| Releases shipped | 69 | last: 5 days ago |
| Funding links | 1 | declared by maintainers |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
Security advisories
CVE-2024-36856. What people say on Hacker News
- I stopped using JSON for MQTT and use Zig to develop gRPC-like communication
- DJI Romo's MQTT broker had no ACLs – one token, 7k home cameras
- Show HN: MQTT Topic Lab – MQTT client with buttons using command variables
- Show HN: Android Notifications over MQTT
- Show HN: Bambutop – a Rust TUI for Bambu Lab 3D printer monitoring
Ready to self-host RMQTT Broker?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
Similar open-source projects
Projects in our directory that replace the same SaaS or share topics with RMQTT Broker.