Matterbridge vs Spark IM
A side-by-side comparison of two self-hosted team chat options — licensing, setup difficulty, resource needs, and what each one replaces.
Matterbridge
Bridge messages between many chat platforms
VS
Spark IM
Cross-platform XMPP instant messaging client
| Feature | Matterbridge | Spark IM |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 23 · At risk | 61 · Good |
| Category | Team Chat | Team Chat |
| License | Apache-2.0 | Apache-2.0 |
| Language | Go | Java |
| Setup difficulty | Medium | Easy |
| Min. RAM | 64 MB | 256 MB |
| Deployment | docker, binary, source | binary, source |
| GitHub stars | ★ 7,573 | ★ 604 |
| First released | 2016 | 2004 |
| Replaces | Slack | Slack, Skype |
What are Matterbridge and Spark IM?
Matterbridge
Matterbridge is a simple chat bridge that connects messages between a wide range of platforms including Matrix, Mattermost, IRC, XMPP, Discord, Telegram, and more. It lets disparate communities stay connected across services.
- Bridges 15+ chat protocols
- Single static binary
- Simple TOML configuration
- Relays files and attachments
Spark IM
Spark is a full-featured, cross-platform XMPP instant messaging client with group chat, file transfer, and strong support for the Openfire server. It is aimed at organizations running their own chat infrastructure.
- XMPP desktop client
- Group chat and file transfer
- Tight Openfire integration
- Cross-platform
Matterbridge vs Spark IM: key differences
Matterbridge is written in Go, while Spark IM is built with Java. Matterbridge is the lighter option, starting around 64 MB of RAM against 256 MB for Spark IM. Spark IM is the more established project (first released 2004), while Matterbridge arrived in 2016. Matterbridge has the considerably larger community, at 7,573 GitHub stars versus 604. Matterbridge lists first-class Docker deployment; Spark IM does not.
Why pick each one
Choose Matterbridge if…
- Connects otherwise isolated communities
- Easy to deploy
Watch out for
- No persistent message history
- Bridging quirks per platform
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
Frequently asked questions
Is Matterbridge or Spark IM better?
Neither is universally better. Matterbridge has the larger community, while Spark IM is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Matterbridge and Spark IM free and open-source?
Yes. Matterbridge is licensed under Apache-2.0 and Spark IM under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Matterbridge and Spark IM with Docker?
Matterbridge: yes. Spark IM: check the project docs for container support.
Which is lighter on resources, Matterbridge or Spark IM?
Matterbridge has the smaller minimum footprint at 64 MB of RAM, compared to about 256 MB for Spark IM. Real-world usage depends on library size, user count, and enabled features.