> For the complete documentation index, see [llms.txt](https://help.appybuilder.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.appybuilder.com/extensions.md).

# Extensions

Extensions are like plug-in components that can be imported and used in your app.

They provide additional features such as RadioButtons, RatingBar, Tools, Image cropping, etc.

See links below for list and discussions on extensions:

<http://community.appybuilder.com/t/about-the-extensions-category/2>

<http://community.appybuilder.com/search?q=extension>