Nats io Nats server by nats-io
High-Performance server for NATS.io, the cloud and edge native messaging system.
About Nats io Nats server
From the project's README at github.com/nats-io/nats-server. Lightly cleaned for readability; for the full source see the upstream repo.
NATS is a simple, secure and performant communications system for digital systems, services and devices. NATS is part of the Cloud Native Computing Foundation (CNCF). NATS has over 40 client language implementations, and its server can run on-premise, in the cloud, at the edge, and even on a Raspberry Pi. NATS can secure and simplify design and operation of modern distributed systems.
[![License][License-Image]][License-Url] [![Build][Build-Status-Image]][Build-Status-Url] [![Release][Release-Image]][Release-Url] [![Slack][Slack-Image]][Slack-Url] [![Coverage][Coverage-Image]][Coverage-Url] [![Docker Downloads][Docker-Image]][Docker-Url] [![GitHub Downloads][GitHub-Image]][Somsubhra-URL] [![CII Best Practices][CIIBestPractices-Image]][CIIBestPractices-Url] [![Artifact Hub][ArtifactHub-Image]][ArtifactHub-Url] Documentation Official Website Official Documentation FAQ Watch a video overview of NATS. Watch this video from SCALE 13x to learn more about its origin story and design philosophy. Contact Twitter: Follow us on Twitter! Google Groups:
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 | 20k | github.com/nats-io/nats-server |
| GitHub forks | 1.8k | github.com/nats-io/nats-server |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 13.5 years | since Oct 2012 |
| Last commit | 3 days ago | May 4, 2026 |
| Releases shipped | 270 | last: 7 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-2026-33249. What people say on Hacker News
Ready to self-host Nats io Nats server?
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.
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