Charybdis IRCd vs Nextcloud Talk
A side-by-side comparison of two self-hosted chat & communication options — licensing, setup difficulty, resource needs, and what each one replaces.
Nextcloud Talk
Chat, video calls and webinars integrated into Nextcloud
| Feature | Charybdis IRCd | Nextcloud Talk |
|---|---|---|
| Deploy effort | Read-the-docs project | Under-an-hour setup |
| Health score | 7 · At risk | 86 · Excellent |
| Status | Archived | Actively maintained |
| Category | Chat & Communication | Chat & Communication |
| License | GPL-2.0 | AGPL-3.0 |
| Language | C | JavaScript |
| Setup difficulty | Medium | Medium |
| Min. RAM | 64 MB | 512 MB |
| Deployment | bare-metal, source | docker, bare-metal, source |
| GitHub stars | ★ 230 | ★ 2,201 |
| First released | 2008 | 2018 |
| Replaces | Discord, Slack | Slack, Zoom, Microsoft Teams |
What are Charybdis IRCd and Nextcloud Talk?
Charybdis IRCd
Charybdis is an IRCv3-capable IRC server daemon descended from ratbox, designed to power large IRC networks. It has been used as the basis for several other IRC server projects and is fully self-hostable.
- IRCv3-capable IRC server
- Designed for large networks
- Basis for other IRC daemons
Nextcloud Talk
Nextcloud Talk is the communication app for the Nextcloud platform, providing private chat, audio and video calls, and screen sharing. It runs entirely on your own Nextcloud instance.
- Integrated with Nextcloud files
- WebRTC audio and video calls
- Screen sharing and webinars
- Mobile apps for iOS and Android
Charybdis IRCd vs Nextcloud Talk: key differences
The biggest difference is maintenance: Charybdis IRCd's repository is archived and no longer developed, while Nextcloud Talk is actively maintained. Charybdis IRCd is written in C, while Nextcloud Talk is built with JavaScript. Licensing differs — GPL-2.0 for Charybdis IRCd versus AGPL-3.0 for Nextcloud Talk. Charybdis IRCd is the lighter option, starting around 64 MB of RAM against 512 MB for Nextcloud Talk. Charybdis IRCd is the more established project (first released 2008), while Nextcloud Talk arrived in 2018. Nextcloud Talk has the considerably larger community, at 2,201 GitHub stars versus 230. Nextcloud Talk lists first-class Docker deployment; Charybdis IRCd does not.
Why pick each one
Choose Charybdis IRCd if…
- Released under the GPL-2.0 license
- Written in C
- Tiny footprint — runs in 64 MB RAM
Choose Nextcloud Talk if…
- Tight Nextcloud integration
- End-to-end encrypted calls
Watch out for
- Requires a Nextcloud installation
- High-load calls need a TURN/HPB server
Frequently asked questions
Is Charybdis IRCd or Nextcloud Talk better?
Neither is universally better. Nextcloud Talk has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Charybdis IRCd and Nextcloud Talk free and open-source?
Yes. Charybdis IRCd is licensed under GPL-2.0 and Nextcloud Talk under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Charybdis IRCd and Nextcloud Talk with Docker?
Charybdis IRCd: check the project docs for container support. Nextcloud Talk: yes.
Which is lighter on resources, Charybdis IRCd or Nextcloud Talk?
Charybdis IRCd has the smaller minimum footprint at 64 MB of RAM, compared to about 512 MB for Nextcloud Talk. Real-world usage depends on library size, user count, and enabled features.