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Well done - you've just added screen sharing to your video chat app!

You completed our fundamental tutorials. Your video chat app is functioning well! Check out these resources to keep building and learning about the OpenTok platform.

Core Concepts

Learn about the OpenTok platform, the languages we support with our client SDKs and server SDKs, the architecture of our platform, and more.

Developer Guides

More tutorials on how to build with the OpenTok platform, including handling exceptions, security considerations, and debugging.

Client SDKs

Learn about and download our client SDKs for iOS, Android, and Web

Server SDKs

Learn about and download our server SDKs in Java, Node.js, Python, .Net, PHP, and Ruby.


Learn about tools to help improve your OpenTok-powered application.

Want to learn how to build for Web or Android?

Start for Web Start for Android