ejabberd vs Synapse

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

Not the right match-up?
FeatureejabberdSynapse
CategoryMatrix & XMPPMatrix & XMPP
LicenseGPL-2.0AGPL-3.0
LanguageErlangPython
Setup difficultyHardHard
Min. RAM512 MB1,024 MB
Deploymentdocker, bare-metaldocker, bare-metal
GitHub stars★ 6,711★ 4,503
First released20022014
ReplacesSlack, WhatsAppSlack, Discord, WhatsApp

Why pick each one

Choose ejabberd if…

  • Extremely scalable
  • Battle-tested
  • Standards-based
ejabberd details

Choose Synapse if…

  • Open federated protocol
  • Strong encryption
  • Bridges to other chats
Synapse details

Frequently asked questions

Is ejabberd or Synapse better?

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

Are ejabberd and Synapse free and open-source?

Yes. ejabberd is licensed under GPL-2.0 and Synapse under AGPL-3.0. Both can be self-hosted at no software cost.

Can I run ejabberd and Synapse with Docker?

ejabberd: yes. Synapse: yes.

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