Chat & Messaging
Support 1:1 chat, groups, large-scale groups, history, offline messages, sync, receipts, search, and rich message types.
Explore Chat & MessagingOpenIM Platform
Open source comms
Build in-app chat, messaging, voice calls, and video meetings with OpenIM. Use self-hosted deployment, multi-platform SDKs, Server APIs, and enterprise options when your product needs more control.
Platform
One platform for real-time communication
OpenIM brings Chat & Messaging and Voice & Video into apps, websites, and existing systems.
Voice & Video
Add voice calls, video calls, group voice & video, meetings, screen sharing, controls, and call history.
Explore Voice & VideoPlatform features
Communication infrastructure for developers
Open source
Build and extend OpenIM from open source.
Deploy in your environment
Run OpenIM in your own infrastructure.
Built for developers
Integrate with multi-platform SDKs, Server APIs, and webhooks.
Product architecture
How OpenIM connects your app and services
Client SDKs connect to OpenIM Server, then to your backend and infrastructure.
Developers
Developer resources
Use docs, SDKs, and tutorials to integrate, deploy, and validate OpenIM faster.
Ready to build real-time communication?
Start with OpenIM to add chat, voice, and video meetings to your app.
FAQ
FAQ
What is OpenIM?
OpenIM is open source communication infrastructure for building chat, messaging, voice, and video into applications.
Is OpenIM a chat app?
OpenIM is not a single chat app. It provides SDKs, Server APIs, webhooks, and server-side components for developers.
What products does OpenIM include?
The current site covers Chat & Messaging and Voice & Video.
Can I deploy OpenIM in my own environment?
Yes. You can deploy OpenIM Server in your own infrastructure and connect it to your backend.
Where should I start?
Start with the docs, SDKs, or tutorials. For enterprise editions, trials, and licensing, request a trial.