ircu2 vs The Lounge
A side-by-side comparison of two self-hosted chat & communication options — licensing, setup difficulty, resource needs, and what each one replaces.
The Lounge
Modern, self-hosted web IRC client
| Feature | ircu2 | The Lounge |
|---|---|---|
| Deploy effort | Read-the-docs project | Under-an-hour setup |
| Health score | 51 · Fair | 91 · Excellent |
| Category | Chat & Communication | Chat & Communication |
| License | GPL-2.0 | MIT |
| Language | C | TypeScript |
| Setup difficulty | Medium | Easy |
| Min. RAM | 64 MB | 256 MB |
| Deployment | bare-metal, source | docker, binary, source |
| GitHub stars | ★ 64 | ★ 6,336 |
| First released | 1996 | 2014 |
| Replaces | Discord, Slack | IRCCloud, Slack |
What are ircu2 and The Lounge?
ircu2
ircu2 (ircd-undernet) is the IRC server daemon developed for and used by the Undernet IRC network. It can be self-hosted to run an IRC network and supports a feature-rich channel and server model.
- IRC server used by Undernet
- Feature-rich channel model
- Lightweight C daemon
The Lounge
The Lounge is a modern web-based IRC client that you host yourself, staying always connected and synchronizing across devices. It offers a responsive interface accessible from any browser.
- Always-on IRC connection
- Synchronized multi-device experience
- Responsive web and mobile UI
- Push notifications
ircu2 vs The Lounge: key differences
Ircu2 is written in C, while The Lounge is built with TypeScript. Licensing differs — GPL-2.0 for ircu2 versus MIT for The Lounge. Ircu2 is the lighter option, starting around 64 MB of RAM against 256 MB for The Lounge. Ircu2 is the more established project (first released 1996), while The Lounge arrived in 2014. The Lounge has the considerably larger community, at 6,336 GitHub stars versus 64. The Lounge lists first-class Docker deployment; ircu2 does not.
Why pick each one
Choose ircu2 if…
- Released under the GPL-2.0 license
- Written in C
- Tiny footprint — runs in 64 MB RAM
Choose The Lounge if…
- Great IRC experience in the browser
- Multi-user support
Watch out for
- IRC-only
- No built-in voice or video
Frequently asked questions
Is ircu2 or The Lounge better?
The Lounge is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider ircu2 if its specific feature set fits your needs better.
Are ircu2 and The Lounge free and open-source?
Yes. ircu2 is licensed under GPL-2.0 and The Lounge under MIT. Both can be self-hosted at no software cost.
Can I run ircu2 and The Lounge with Docker?
ircu2: check the project docs for container support. The Lounge: yes.
Which is lighter on resources, ircu2 or The Lounge?
ircu2 has the smaller minimum footprint at 64 MB of RAM, compared to about 256 MB for The Lounge. Real-world usage depends on library size, user count, and enabled features.