diagrams.net
app.diagrams.net
A free, open-source diagramming tool for flowcharts, UML, network and org charts, which saves to your device, Google Drive, GitHub and more. Formerly known as draw.io.
diagrams.net (formerly draw.io) is a free diagramming tool for flowcharts, UML, ER diagrams, network maps, org charts and more. It runs in the browser, and you decide where files are saved: your device, Google Drive, GitHub and other places, so the app does not keep your diagrams on its own servers.
It is open source and also available as a desktop app that works offline. You can export to PNG, SVG and PDF, and diagrams embed in documentation tools. It is a common free alternative to paid diagramming software, and a good choice when privacy or control over where files are stored matters.
Why it is useful
A capable alternative to paid diagramming software that needs no account. You choose where files are saved, and it exports to PNG, SVG and PDF, so your diagrams are not locked into the service.
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