Core2D is described as 'Multi-platform application for making data driven 2D diagrams. The application has built-in wyswig vector graphics editor where you can bind data to shapes, share data across multiple documents, edit documents using layers' and is a Diagram Editor in the office & productivity category. There are more than 25 alternatives to Core2D for a variety of platforms, including Web-based, Windows, Mac, Linux and Android apps. The best Core2D alternative is Penpot, which is both free and Open Source. Other great apps like Core2D are LibreOffice - Draw, Excalidraw, Pencil Project and yEd Graph Editor.