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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facilmap
FacilMap is a privacy-friendly, open-source versatile online map that combines different services based on OpenStreetMap and makes it easy to find places, plan trips and add markers, lines and routes to custom maps with live collaboration.
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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.
You could try something like Google My Maps or a FacilMap (a similar tool that's based on OpenStreetMap). Both should be easy enough to set up on tablets, and can be collaboratively edited.
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