Sitecore JSS, short for JavaScript Services, is a software development kit for building Sitecore front ends with JavaScript frameworks. It supports React, Angular, Vue and Next.js.
JSS lets front-end developers work with modern tools while content authors keep using Sitecore to manage pages and components. It is the basis of headless delivery for Sitecore sites.
Today, the Next.js SDK for Sitecore is a common choice for new headless builds.
To plan a headless build, read about our platform implementation services.