Frontend modules in the Wix JavaScript SDK provide frontend APIs for interacting with Wix sites and their features directly from the browser. They require Wix hosting and aren't 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 documentation.
Frontend modules work in site code on Wix Studio and Wix Editor sites. In Studio Two sites, use the Site SDKs instead.
Frontend modules aren't compatible with Wix Headless projects. For headless implementations, use the appropriate backend modules.
In apps, support depends on the extension type, not on the editor that built the site. Site extensions that are available in Wix Studio and Wix Editor, such as embedded scripts, custom elements, and site plugins, can use frontend modules wherever they run, including on Wix Harmony and Studio Two sites. Editor React Components (ERCs), which are available only in Wix Harmony and Studio Two, can't use frontend modules. Learn more about which extension types each editor supports.
Frontend modules can be used in the following environments:
Last updated: 4 November 2026