Packages are certainly one of the greatest features that Flutter offers. Both the Flutter team and third-party developers add and maintain packages to the Flutter ecosystem daily. This makes building apps much faster and more reliable, as you can focus on the specific features of your app while leveraging classes and functions that have been created and tested by other developers.

Packages are published on the following website: https://pub.dev. This is the hub where you can go to search for packages, verify their platform compatibility (iOS, Android, web, and desktop), their popularity, versions, and use cases. Chances are that you've already used pub.dev several times before reading this chapter.

Here is the current home of the pub.dev repository, with the search box at the center of the screen: 

In this chapter, we will cover...