Atheme IRC Services vs ircd-hybrid
A side-by-side comparison of two self-hosted chat & communication options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Atheme IRC Services | ircd-hybrid |
|---|---|---|
| Deploy effort | Read-the-docs project | Read-the-docs project |
| Health score | 59 · Fair | 69 · Good |
| Category | Chat & Communication | Chat & Communication |
| License | ISC | GPL-2.0 |
| Language | C | C |
| Setup difficulty | Hard | Medium |
| Min. RAM | 64 MB | 64 MB |
| Deployment | bare-metal, source | bare-metal, source |
| GitHub stars | ★ 429 | ★ 200 |
| First released | 2005 | 1997 |
| Replaces | Slack | Slack, Discord |
What are Atheme IRC Services and ircd-hybrid?
Atheme IRC Services
Atheme is a set of IRC services designed for large and highly scalable IRC networks. It provides account registration, channel management, and a flexible modular architecture.
- Scales to large networks
- Modular service design
- Account and channel management
- Used by historic IRC networks
ircd-hybrid
ircd-hybrid is a long-standing IRC server daemon known for stability and a lightweight footprint. It supports modern IRC features and modular extensions, and can be self-hosted to run an IRC network.
- Stable lightweight IRC daemon
- Modular extensions
- Long-standing project
Atheme IRC Services vs ircd-hybrid: key differences
Both projects are written in C. Licensing differs — ISC for Atheme IRC Services versus GPL-2.0 for ircd-hybrid. Ircd-hybrid is the more established project (first released 1997), while Atheme IRC Services arrived in 2005. Atheme IRC Services has the considerably larger community, at 429 GitHub stars versus 200.
Why pick each one
Choose Atheme IRC Services if…
- Released under the ISC license
- Written in C
- Tiny footprint — runs in 64 MB RAM
Choose ircd-hybrid if…
- Released under the GPL-2.0 license
- Written in C
- Tiny footprint — runs in 64 MB RAM
Frequently asked questions
Is Atheme IRC Services or ircd-hybrid better?
Neither is universally better. Atheme IRC Services has the larger community, while ircd-hybrid is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Atheme IRC Services and ircd-hybrid free and open-source?
Yes. Atheme IRC Services is licensed under ISC and ircd-hybrid under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Atheme IRC Services and ircd-hybrid with Docker?
Atheme IRC Services: check the project docs for container support. ircd-hybrid: check the project docs for container support.