Is UXP missing a feature or API that is blocking your migration from CEP (or elsewhere) to UXP? Please list it here. @zwettemaan said recently that he knew several developers who started to migrate but were blocked and went back to ExtendScript. I’m curious what those features are… please list them…

I think dialog wants to fit its inner content… if you restrict inner content max size then it will help. But I miss feature to change dialog and more importantly popover size after it is shown.

Thanks @Jarda on the concept of limiting the inner content. I’ll see what I can do if we ever make a dialog from scratch again. Yeah, in ExtendScript with ScriptUI, I had several dialogs that dynamically changed sizes once the user exposed certain features. It seems all I can do now is reserve the …

for me those are a lack of alternatives to some helpful CEP methods, CSInterface.prototype.resizeContent() comes to mind; no way of using something similar to app.system() even with user’s consent; a lack of an alternative to ScriptUI.environment.keyboardState that was able to detect a modifier ke…

Thanks for all the thoughtful posts! I was going to compile these into a neat voteable list for easy browsing by the Product team, but some of the items are less features than large concepts… nevertheless, I’ll see what I can do. Feel free to keep adding to the list.

For me pain points during migration are: I Can’t pass arguments along with command. I can only run file without arguments I can’t start server in UXP There is no file watcher built-in. I need to watch folder content in intervals and that has poor performance tokens in descriptors… with manifest v6…

Hi @Erin_Finnegan Thanks for this post, hope this can be helpful: For me the things that are a MUST, and I had to workaround with other things like Electron and other ways to make my plugins work the way I wanted is: Programmatically resizable UXP window, a lot of users miss my plugins old UX an…

@Erin_Finnegan I’m not sure if this is the place for a feature request, but one really frustrating feature is the number clicks required to start debugging a script. Basically, AFAICT the developer needs to: Make the UXP Developer Tools window active Find and click the “Debug Script” button for th…

The main issues are: Forcing everything to be async makes code much more difficult to write. There are situations where async API’s are useful, but for 90% scripts (particularly casual ones) it just makes it more difficult to write and debug. The restrictions on APIs are painful. For example, …

Question: what is the status of UXP Hybrid Plugins (i.e. being able to write C++ code for a DLL that gets integrated into a UXP plugin)? This is currently a blocker for me to implement certain features in CRDT_UXP. Having that would make it vastly easier for me to add new features to Creative Devel…

I only just started with UXP, i might be mistaken. I am blocked by Indesigns Enumerators not beeing present, or the way they work, i have to use the values or write conversion routines. i miss toSource()/eval as a way to store data in scriptlabels or local files. I can’t get JSON.stringify to prop…

Which missing feature or API is blocking your UXP migration?

InDesign

Jarda May 13, 2026, 10:04am 34

I created UXP debugger for VSCode. More info here: UXP Debugger for VSCode is now available!

It works with plugins. I am not sure about UXP script files.

Topic		Replies	Views
Priority Request: UXP Hybrid Plugin support in InDesign InDesign feature-request , uxp , javascript	11	479	February 4, 2025
Concerns about migration of CEP extension to UXP UXP Plugin API feature-request , api-feedback	27	6051	September 11, 2024
Run extendscript from uxp UXP Plugin API	16	2079	November 17, 2022
What can and can't UXP do? Photoshop ui , uxp , javascript	19	1330	February 8, 2024
UXP Roadmap UXP Plugin API css	28	2501	December 8, 2023

Which missing feature or API is blocking your UXP migration?

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