This Swift-JsonSerializer library gives you an easy to implement library for serialzing and deserializing JSON files with Swift. Check it out here: https://github.com/gfx/Swift-JsonSerializer
This Swift-Reachability library gives you an easy to implement library for cheching the status and the type of your internet and / or wifi connection. Check it out here: https://github.com/Isuru-Nanayakkara/Swift-Reachability
This ImageScout library gives you an easy to implement library for finding the size and type of a remote image without the need to download large amounts of data. Check it out here: https://github.com/kaishin/ImageScout
This JHProgressHUD library gives you an easy to implement library for using a HUD with Swift. Check it out here: https://github.com/harikrishnant1991/JHProgressHUD
This OAuthSwift library gives you an easy to implement library for OAuthentication with Swift. Check it out here: https://github.com/dongri/OAuthSwift