> Portal Navigation:
> 
> - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version.
> - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages).
> - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`).
> - Top-level index of all portals: https://dev.wix.com/docs/llms.txt
> - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt

## Resource: About Frontend Modules

## Article: About Frontend Modules

## Article Link: https://dev.wix.com/docs/sdk/frontend-modules/about-frontend-modules.md

## Article Content:

# About Frontend Modules

Frontend modules in the Wix JavaScript SDK provide frontend APIs for interacting with Wix sites and their features directly from the browser. Note that frontend modules require Wix hosting and are not available for external hosting environments.

Some functionality may still require using Velo APIs alongside the SDK. For functionality not yet supported by SDK frontend modules, refer to the [Velo to SDK API Mapping](https://dev.wix.com/docs/develop-websites/articles/coding-with-velo/develop-with-the-sdk/velo-to-sdk-api-mapping.md) documentation.

Frontend modules are intended for:

- **Wix site development**: Developers building custom functionality within a Wix site environment.
- **Wix app development**: Developers creating site extensions for apps that run within a Wix site environment.

<blockquote class="important">

**Important:** Frontend modules are **not** compatible with Wix Headless projects. For headless implementations, use the appropriate backend modules.

</blockquote>

## Available environments

Frontend modules can be used in the following environments:

- **Site**: For code running on live Wix sites.
- **Dashboard**: For custom dashboard pages.
- **Editor**: For extending the Wix Editor functionality.