SHSelfHostIndex

Centrifugo vs Flexisip

A side-by-side comparison of two self-hosted chat & communication options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
CE Centrifugo Scalable real-time messaging server for apps and websites VS FL Flexisip Complete, modular and scalable SIP server, includes a push gateway, to
FeatureCentrifugoFlexisip
CategoryChat & CommunicationChat & Communication
LicenseMITAGPL-3.0
LanguageGoC++
Setup difficultyMediumMedium
Min. RAM256 MB512 MB
Deploymentdocker, kubernetes, binarydocker
GitHub stars★ 10,590★ 186
First released20152020
ReplacesPusher, Firebase Realtime Database—

Why pick each one

Choose Centrifugo if…

  • Handles many connections
  • Easy to integrate
Centrifugo details

Choose Flexisip if…

  • Released under the AGPL-3.0 license
  • First-class Docker support for quick deployment
  • Written in C++
  • Lightweight — runs in 512 MB RAM
Flexisip details

Frequently asked questions

Is Centrifugo or Flexisip better?

Neither is universally better. Centrifugo has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.

Are Centrifugo and Flexisip free and open-source?

Yes. Centrifugo is licensed under MIT and Flexisip under AGPL-3.0. Both can be self-hosted at no software cost.

Can I run Centrifugo and Flexisip with Docker?

Centrifugo: yes. Flexisip: yes.

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