Around 5 years ago I was looking for a good open-source mobile messaging framework. There were a lot of options available but they all had big drawbacks.

• Expensive: They start off cheap but end up being very expensive at scale
• Lock-in: They are closed platforms if the company closes down you are in trouble (Parse, Pusher ChatKit)!
• Closed-source: You are relying on code you can't see, improve or audit

I wanted to solve these problems, that's where Chat SDK was born. Chat SDK is:

• Open-source: You can modify, fix and audit the code
• Backend agnostic: One client can be connected to potentially any chat server
• Open data: Keep full control over your users' data
• Scalable: Chat SDK scales to millions of users per node
• Cheap: You can self-host with XMPP or if you use Firebase you pay $1 per GB which is about 500k messages
• Community: The Chat SDK community helps us fix bugs and add new features.

Along with developing the core library, we have also developed a number of add-on modules. We would like to share these modules with you, our supporters.

By sponsoring us, you get access to our premium modules as well as allowing us to spend more time making this project better.

If you like what we're building, help us make it better by supporting the team.