# Using Extensions

Extend and customize Bike with extensions. They introduce new commands, keybindings, views, styles, and more. Sensitive features are safeguarded by a permission system.

**To install an extension:**

1. Choose Bike > Extensions to show Bike's extension folder
2. Move the extension folder (ends with `.bkext`) into that folder
3. Bike will automatically load the extension and make available its features

See the [Creating Extensions](https://bikeguide.hogbaysoftware.com/bike-2-preview/customizing-bike/creating-extensions) section to learn how to create your own extensions .