# Extensions
In addition to being highly customizable, Directus has been architected to be completely modular and extensible. This ensures you will never hit a hard feature ceiling within the platform.
# Extension SDK
The easiest way to start creating extensions is to use the Extensions SDK.
# App Extensions
Allow creating custom experiences within the Directus App.
- Modules — Created with Vue.js
- Layouts — Created with Vue.js
- Interfaces — Created with Vue.js
- Displays — Created with Vue.js
- Panels — Created with Vue.js
- Themes — Created with custom CSS
# API Extensions
Allow extending and customizing the data pipeline and platform logic.
- Endpoints — Created with JavaScript / Node.js
- Hooks — Created with JavaScript / Node.js
- Email Templates — Created with Liquid.js
- Migrations — Created with JavaScript / Node.js