Recommends this tool
Quick way to get an idea out of your head. As a researcher I've also used it for diagrams and figures in papers, and it holds up for that.
draw.io
Open source diagramming tool with real-time collaboration and privacy-first data storage.
Rating
5.0 out of 5
Overview
Draw.io is a free, open source diagramming application used by over 100 million users worldwide. It supports professional diagramming with backwards compatibility, real-time collaboration, and native integrations with popular platforms. Users retain full control over data storage with privacy-first design.
Updated Oct 19, 2026.
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