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Filter by platform, license text, maturity, maintenance cadence, and editorial tags like privacy-focused or self-hosted. Search matches names, summaries, tags, and use cases.

Openfire

Honorable mention

Real-time XMPP server for chat and presence.

xmppchatserver

Communication & Collaboration

Pidgin

Honorable mention

Multi-protocol chat client with libpurple plugins for XMPP, IRC, and various legacy networks.

chatxmppirclibpurple