# About online store extensions

> Online store extensions inject your Shoplazza App's content into a merchant's storefront through theme extensions, without editing the theme source code.

# Online store

Online store extensions inject custom content into your storefront via **Theme Extensions**, going live without requiring modifications to the merchant's theme source code. Merchants add or enable your extension in the Theme Editor; the extension is distributed and updated alongside the app.

There are two types of theme extensions:

- **Basic**: Provided as visual blocks that merchants manually add to designated positions in the Theme Editor.
- **Embed**: Globally embedded, commonly used for site-wide scripts, pixels, and other capabilities without fixed positions. Merchants enable them in the theme settings.

This section includes: