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.
draw.io for block diagrams (now free to use at https://app.diagrams.net/ or download your own copy at https://github.com/jgraph/drawio-desktop/releases/ Either way you can keep your drawings on your machine, GitHub, GitLab, Dropbox, Google Drive, …). Draw.io has predrawn symbols for electronics schematics, but they are terrible—Scheme-it produces much nicer-looking schematics that are more easily drawn.
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