Apps similar to draw.io include Excalidraw, which is open source with a free version. Other options are LibreOffice - Draw, Dia, yEd Graph Editor and TreeSheets. There's no shortage of Diagram Editors like draw.io, with more than 100 alternatives for the web, Windows, Mac, Linux and iPad.
Eraser is an all-in-one ideation tool for distributed teams. Eraser allows users to communicate ideas at the speed of thought using a markdown note editor, a lightweight canvas. Use Eraser for brainstorming, diagramming, wireframing, and interviewing!
Design flowcharts, UML, Venn, and mind map diagrams with customizable templates, varied symbols, shapes, connector styles, overlapping sheet support, and intuitive drag-and-drop editing. Export visuals as images, edit multiple diagrams, and organize complex data visibly.
Australia
Scapple is an easy-to-use tool for getting ideas down as quickly as possible and making connections between them. It isn’t exactly mind-mapping software—it’s more like a freeform text editor that allows you to make notes anywhere on the page and to connect them using straight...
United Kingdom
Flowgorithm is a free application that helps you create programs using simple flowcharts.
United States
Simple vector graphics editor for creating flowcharts, UML class diagrams, illustrations and slide shows.
Denmark
EU
Lekh Diagram empowers you to express your idea on iPad and iPhone simply by sketching shapes with your finger.
A daily drawing tool that supports low code for learning or office use. It can be used for flowchart, mind map, UML diagram, ER diagram, network topology diagram, BPMN, Venn diagram, database model diagram, whiteboard drawing, infinite canvas, and more.
Moredraw is a thought recording whiteboard with multiple types of nodes built in, including flowcharts, mind maps, pictures, notes, videos, to-do lists, charts, etc. Any node can be linked to help you organize your thoughts.
ZenUML is a tool generating sequence diagrams from markup text. You can write Java-like code and it generate diagram from it.
Australia
