## What are Extensions?

Extensions are modular add-ons for Scaffold-ETH 2 that provide additional functionality or serve as examples for specific features.

:::info
Extensions can only be installed during the initial setup of a new Scaffold-ETH 2 project.
:::
They offer several benefits:

* Seamless integration with the base Scaffold-ETH 2 project
* Quick addition of new features, pages, contracts, or components at project creation
* Compatibility with Scaffold-ETH 2 core updates and improvements

Extensions are compact packages containing specific code (such as a smart contract or UI component) that automatically integrate with the latest version of Scaffold-ETH 2 when initializing a new project via npx. They are starting points for your project, not finished products.

## Get Started

:::note\[📦 How to Install Extensions]
This guide explains what are extensions and how to use them in your Scaffold-ETH 2 project.

[Learn how to install →](/extensions/howToInstall)
:::

:::note\[🛠️ Creating Your Own Extension]
This section will help you develop custom extensions for Scaffold-ETH 2, from simple additions to more complex integrations.

[Start creating →](/extensions/createExtensions)
:::