Spectrum 2
Spectrum 2 is an open source instant messaging transport. It allows users to chat together even when they are using different IM networks.
- GitHub stars
- 421
- License
- GPL-3.0
- Latest release
- 2.2.1
12 June 2023 - Last commit
- 24 September 2026
- Runs on
- C++
Commits per month, last 12 months
76 commits
How to self-host Spectrum 2
Spectrum 2 runs on C++. The project's own install guide is the place to start; most people put it on a small server with Docker and a reverse proxy for HTTPS.
- Get a server: a home server, a VPS, or a managed app host.
- Install it the way the project's docs describe, usually with Docker Compose.
- Put it behind HTTPS and set up backups before you add real data.
- Update it regularly. Watch the project's releases.
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Questions
Is Spectrum 2 free?
Yes. Spectrum 2 is open source under the GPL-3.0 license, so you can use it without paying for a license. You pay only for the server it runs on.
Can I self-host Spectrum 2?
Yes. Spectrum 2 runs on C++. Follow the install guide in the project's documentation, or use a host that installs it for you.
Is Spectrum 2 still maintained?
The last change to Spectrum 2's code was on 24 September 2026, with 76 commits in the last 12 months.
Topics
App data from awesome-selfhosted (CC BY-SA 3.0), stars and activity from GitHub.