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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FormValidation
Discontinued The best @jquery plugin to validate form fields. Designed to use with Bootstrap + Zurb Foundation + Pure + SemanticUI + UIKit + Your own frameworks.
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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 use formvalidation.io for frontend. It's just easier to work with than other solutions I've used. But, before you do frontend form validation please ensure that your backend is validating the inputs first.
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