-
SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
Either that or add signals to the library itself. I don't get why it isn't in there when a ton of React's competitors are either using signal-like behavior or forgoing the clearly-obsolete way React handles its VDOM. When a high schooler can create something to make the library faster, you know that the core team is either prioritizing the wrong things or someone managing React is too prideful to admit that a lot of what worked a decade ago doesn't work today.