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.
That being said, when JSON serialization should indeed fail, the library above might also be useful as it provides additional insights into why it did fail: specific property path and value, and reason why it failed. I have written a [second library `is-json-value`](https://github.com/ehmicky/is-json-value) which makes it convenient to generate a list of warning messages indicating why a value is not JSON-safe.
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