ircd-hybrid vs irssi
A side-by-side comparison of two self-hosted chat & communication options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | ircd-hybrid | irssi |
|---|---|---|
| Deploy effort | Read-the-docs project | Read-the-docs project |
| Health score | 69 · Good | 69 · Good |
| Category | Chat & Communication | Chat & Communication |
| License | GPL-2.0 | GPL-2.0 |
| Language | C | C |
| Setup difficulty | Medium | Medium |
| Min. RAM | 64 MB | 32 MB |
| Deployment | bare-metal, source | bare-metal, binary, source |
| GitHub stars | ★ 200 | ★ 3,141 |
| First released | 1997 | 1999 |
| Replaces | Slack, Discord | Slack |
What are ircd-hybrid and irssi?
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
irssi
irssi is a terminal-based IRC client known for its stability, scripting support, and clean interface. It can be combined with screen or tmux to act as a long-running session.
- Terminal interface
- Perl scripting
- Themeable display
- Long-running stability
ircd-hybrid vs irssi: key differences
Both projects are written in C. Irssi is the lighter option, starting around 32 MB of RAM against 64 MB for ircd-hybrid. Ircd-hybrid is the more established project (first released 1997), while irssi arrived in 1999. Irssi has the considerably larger community, at 3,141 GitHub stars versus 200.
Why pick each one
Choose ircd-hybrid if…
- Released under the GPL-2.0 license
- Written in C
- Tiny footprint — runs in 64 MB RAM
Choose irssi if…
- Released under the GPL-2.0 license
- Active community (3.1k GitHub stars)
- Written in C
- Tiny footprint — runs in 32 MB RAM
Frequently asked questions
Is ircd-hybrid or irssi better?
Neither is universally better. irssi has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are ircd-hybrid and irssi free and open-source?
Yes. ircd-hybrid is licensed under GPL-2.0 and irssi under GPL-2.0. Both can be self-hosted at no software cost.
Can I run ircd-hybrid and irssi with Docker?
ircd-hybrid: check the project docs for container support. irssi: check the project docs for container support.
Which is lighter on resources, ircd-hybrid or irssi?
irssi has the smaller minimum footprint at 32 MB of RAM, compared to about 64 MB for ircd-hybrid. Real-world usage depends on library size, user count, and enabled features.