Chatto is a Swift lightweight framework to build chat applications. It's been designed to be extensible and performant. Along with Chatto there is ChattoAdditions, a companion framework which includes cells for messages and an extensible input component. You can find more details about how it was implemented in our blog. See them in action!

• Calculation of collection view changes and layout in background
• Supports pagination in both directions and autoloading
• Message count contention for fast pagination and rotation with thousands of messsages
• Accessory view revealing by swiping from right
• Interactive keyboard dismissal
• Text bubbles
• Photo bubbles
• Extensible input bar

Check the wiki!

If you just have a question, please reach us in our gitter room

If you'd like to file a bug report, suggest changes or submit a pull request, please check our contribution guide

1. Make sure use_frameworks! is added to your Podfile.

2. Include the following in your Podfile:

# Swift 5
pod 'Chatto', '= 4.0.0'
pod 'ChattoAdditions', '= 4.0.0' # if you want to use the cells or the input component

# Swift 4.2
pod 'Chatto', '= 3.4.0'
pod 'ChattoAdditions', '= 3.4.0' # if you want to use the cells or the input component

# Swift 4
pod 'Chatto', '= 3.3.1'
pod 'ChattoAdditions', '= 3.3.1' # if you want to use the cells or the input component

# Swift 3
pod 'Chatto', '= 3.2.0'
pod 'ChattoAdditions', '= 3.2.0' # if you want to use the cells or the input component

# Swift 2.x
pod 'Chatto', '= 2.1.0'
pod 'ChattoAdditions', '= 2.1.0' # if you want to use the cells or the input component

If you like living on the bleeding edge, you can use the master branch with:

pod 'Chatto', :git => 'https://github.com/badoo/Chatto', :branch => 'master'
pod 'ChattoAdditions', :git => 'https://github.com/badoo/Chatto', :branch => 'master'

3. Run pod install

If you’re using Carthage, simply add Chatto to your Cartfile:

# Swift 5
github "badoo/Chatto"

# Swift 2.x
github "badoo/Chatto" "swift-2"

1. Clone, add as a submodule or download.
2. Drag and drop Chatto and/or ChattoAdditions project to your workspace
3. Add Chatto and/or ChattoAdditions to Embedded binaries

Source code is distributed under MIT license.

Read more on our tech blog or explore our other open source projects