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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.
I've built a live version of the application, check it out - https://eventtiz-appwrite.vercel.app. The source code is also available here
From the image below, I provided a name for the application and used an asterisk as the hostname. After deploying the application on Vercel, you can change the hostname to the URL provided by Vercel.
Appwrite is a powerful open-source backend platform that enables you to create secured and scalable (web and mobile) applications. With Appwrite, you don't need to worry about the backend resources of your application because with Appwrite, you - "Build Fast. Scale Big. All in One Place."