Builders
ejabberd powered WhatsApp to 2 billion users. It can power your product too, without the vendor lock-in, without the scaling surprises.
Open-source, built on open IETF standards, and actively maintained by the team that created it in 2002.
Building messaging is hard. Scaling it is harder. Most teams underestimate the cost of getting it wrong, until they're already on fire. ejabberd is the proven alternative to rolling your own, at any scale.
ejabberd is not just an XMPP server. It is a complete real-time messaging platform built on Erlang/OTP, the same runtime that powers Ericsson's telecom switches and WhatsApp's global infrastructure. Designed from day one for environments that cannot fail: sub-20ms latency, hot code reloading, and a cold-start architecture that won't collapse under its own reconnection surge.
ejabberd is the foundation. What you build on it is yours.
The full ejabberd platform, free and open-source under GPLv2. Self-host anywhere: bare metal, VMs, Docker, Kubernetes. Complete source code access. Actively maintained with 20+ years of documentation and a large global community.
Download ejabberd →Long-Term Support releases, SLA, priority security patches, and direct access to the ProcessOne engineering team. For teams building production services where reliability is non-negotiable and support response time matters.
Starting at 16 000 €/year for a 2-node cluster
Contact Sales →Managed ejabberd on our infrastructure. Scale your messaging service without managing servers. Full API access, custom domains, and dedicated support. Focus on your product. We handle the infrastructure.
Starting at 200 €/month
Start on Fluux →"If you're envisioning what will be the private social platform of the future, starting from scratch, it would basically look like WhatsApp."
WhatsApp was built on ejabberd. It scaled from zero to 2 billion users without switching its messaging core. The same foundation is available to you: open-source, battle-tested, no vendor lock-in.
Private messaging is the reason users stay on any platform. ejabberd gives you the infrastructure to build it: one-on-one, group chat, presence, push notifications, and full message history, at any scale. The same stack that made WhatsApp possible is available to you.
Gaming is inherently social. ejabberd powers chat, push notifications, and in-game events for some of the largest platforms in the world. Trusted by Nintendo, Riot Games, Ubisoft, Electronic Arts, and Winamax to handle millions of concurrent players without breaking a sweat.
MQTT support makes ejabberd the ideal hub for device fleets. Route telemetry from sensors, dispatch control commands to individual devices, and manage bidirectional data flow at scale. Trusted by Nintendo, Linksys, AVG/Avast, YouView, and Samsung to manage hundreds of millions of connected devices.
Community Edition is free and open-source. Business Edition adds LTS and direct support from our team. Or let us run it for you with Fluux.
