# Sitecore JSS (JavaScript Services) > Sitecore JSS (JavaScript Services) is a specialized development framework and SDK that enables frontend developers to build headless applications powered by the Sitecore Experience Platform. It provides tools for data fetching, routing, and layout management while preserving native Sitecore features like the Experience Editor and personalization in a decoupled architecture. - URL: https://optimly.ai/brand/sitecore-jss-javascript-services - Slug: sitecore-jss-javascript-services - BAI Score: 62/100 - Archetype: Challenger - Category: Software Development Kit (SDK)