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jabberd2

Lightweight C implementation of the XMPP server

Matrix & XMPP Archived ★ 440 stars Hard setup GPL-2.0

This project is archived. Upstream development has stopped, so expect no new features or security fixes. Consider an actively maintained matrix & xmpp alternative.

jabberd2 is a classic XMPP server written in C, designed to be a fast and standards-compliant Jabber server. It uses a modular component architecture for routing and storage.

Official siteSource code

Key features

  • Lightweight C-based XMPP server
  • Modular component architecture
  • SQL and LDAP storage backends
  • Standards-compliant

Pros & cons

Strengths

  • Released under the GPL-2.0 license
  • First-class Docker support for quick deployment
  • Written in C
  • Tiny footprint — runs in 128 MB RAM

Trade-offs

  • Configuration is complex
  • Slow modern development

Is jabberd2 secure?

No known vulnerabilities affect jabberd2's latest release (jabberd-2.7.0). OSV.dev lists 3 past advisories for the project; none of them applies to this release. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

  • Most recent fixed advisory CVE-2017-18225, published 2018-03-12 (3138 days ago)

Source: OSV.dev, checked 2026-10-14. How this is measured.

jabberd2 replaces

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