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draw.io

jgraph/drawio
Ready to use There is an official hosted version — open it and go. No install, no deployment.

draw.io is a JavaScript, client-side editor for general diagramming.

FlowchartUMLVisio alternative
draw.io website screenshot

From the README

draw.io is a configurable diagramming and whiteboarding application, jointly owned and developed by draw.io Ltd (previously named JGraph) and draw.io AG. We also run a production deployment at https://app.diagrams.net.

Stars
★ 8.3k
Language
JavaScript
License
Apache-2.0
Last updated
2026-09-16
Category
Whiteboards & diagrams
Section
General