| Feature | CEP (Old) | UXP (New) | | :--- | :--- | :--- | | | Node.js based, heavy | Lightweight JS engine, fast | | Theming | Manual CSS hacks | Automatic dark/light mode sync | | Networking | Complex CORS handling | Native fetch & WebSocket support | | Accessibility | Limited | Built-in screen reader support | | Binary Access | Limited | Full access to Adobe’s Scenegraph (document object model) |
Before diving deeper, let's address the elephant in the room. CEP plugins run in a Chromium Embedded Framework (CEF) browser, which is heavy and memory-intensive. UXP, by contrast, is a native, lightweight rendering engine built specifically for Adobe hosts. UXP tools allow for (no restarting Photoshop), better memory management, and support for modern JavaScript (ES2020+). adobe uxp developer tools
. As Adobe transitions away from the legacy Common Extensibility Platform (CEP), UDT has become the essential bridge for developers targeting modern versions of Premiere Pro Core Functionalities Adobe UXP: Things you need to know! #3 UXP Developer Tool | Feature | CEP (Old) | UXP (New)
Ensure you have the latest version of or InDesign installed. Enable Developer Mode UXP tools allow for (no restarting Photoshop), better