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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.
Simple Search is the default. Click the button in the upper right to do some more sophisticated filtering with "Advanced Search".
I'll probably make it a PWA once I figure out how to properly do cache busting.
On a different note, I don't know many people who are interested in Unicode lookup tools and/or those who use such tools regularly. I've added in features that I personally found useful, but do let me know if there are killer features you'd like for it to have.
source at https://github.com/EmNudge/unicode-lookup