Spark IM vs Peer-calls
A side-by-side comparison of two self-hosted apps from related categories — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Spark IM
Cross-platform XMPP instant messaging client
VS
Peer-calls
Group peer to peer video calls for everyone
| Feature | Spark IM | Peer-calls |
|---|---|---|
| Category | Team Chat | Chat & Communication |
| License | Apache-2.0 | Apache-2.0 |
| Language | Java | Go |
| Setup difficulty | Easy | Easy |
| Min. RAM | 256 MB | 50 MB |
| Deployment | binary, source | bare-metal |
| GitHub stars | ★ 601 | ★ 1,903 |
| First released | 2004 | 2024 |
| Replaces | Slack, Skype | BigBlueButton, Skype, Zoom |
Why pick each one
Choose Spark IM if…
- Released under the Apache-2.0 license
- Easy to set up — beginner-friendly
- Written in Java
- Tiny footprint — runs in 256 MB RAM
Choose Peer-calls if…
- Released under the Apache-2.0 license
- Easy to set up — beginner-friendly
- Active community (1.9k GitHub stars)
- Written in Go
Frequently asked questions
Is Spark IM or Peer-calls better?
Neither is universally better. Peer-calls has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are Spark IM and Peer-calls free and open-source?
Yes. Spark IM is licensed under Apache-2.0 and Peer-calls under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Spark IM and Peer-calls with Docker?
Spark IM: check the project docs for container support. Peer-calls: check the project docs for container support.