Yes, . It is provided by Adobe to developers building plugins for Photoshop and other Creative Cloud apps.

With the introduction of the Unified Extensibility Platform (UXP), Adobe initiated a paradigm shift toward modern web standards. Central to this initiative is the application. This paper addresses the subject of the tool's availability—confirming its status as a free utility—and analyzes its role in the software development lifecycle.

You will see a manifest.json (defines your plugin’s name, host applications, and permissions) and a main.js (the entry point).

The Adobe UXP developer tools free package includes a range of software development kits (SDKs), APIs, and resources that enable developers to create custom solutions. These tools are designed to be accessible and user-friendly, making it easier than ever for developers to get started with UXP development.