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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.
We are a little lacking in community modules at this point; we have a repository filled with example snippets, but no complex projects that are open-source and free to study/deploy on your scene. If you have no knowledge of programming then you'll likely want to start with the Builder. Its an easy to learn tool, though lacks the ability to optimize/prepare complex scenes. For that you're going to need to use the SDK, which requires some programming knowledge (never too late to learn).