Bower

Bower can manage files containing HTML, CSS, JavaScript, fonts, and even images. Bower does not connect or shrink the code or do anything else - it simply installs the correct version of the package and its dependencies that you need.

Firstly, Bower obtains and installs software packages from various sources, responsible for searching, finding, downloading, and saving what you are looking for. Bower tracks these packages based on the Bower.json file. How to use the package is up to you to decide. Bower provides hook methods to facilitate the use of packages in tools and workflows.

Bower has optimized for the front-end. If multiple packages depend on one package - such as jQuery - Bower will only download jQuery once. This is called flattening, which can reduce the size of page loading resources.