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.
surveyjs.io
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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 don't make money on my personal blog (macarthur.me), but I have used it as a means of driving traffic to one that does. I've been selling TypeIt licenses (https://typeitjs.com) for a few years. Nothing significant in terms of revenue, but ranges from $200-$400 a month -- far more than I initially expected when I created the project as a means of learning JavaScript better.
NOTE:
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Hence, a higher number means a more popular project.