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draw.io

Free open-source diagramming app for flowcharts and architecture

90.0score

Ranked 2 of 6 in best whiteboard and diagramming tools

The strongest diagram editor here for flowcharts and technical drawings, free and open source under Apache-2.0. It is an editor rather than a live whiteboard, so it has no sticky-note layer.

Best for Flowcharts and architecture diagrams stored as files

About draw.io

draw.io is a diagramming editor for flowcharts, process diagrams and technical drawings. Its site describes a security-first diagramming tool that lets users store files wherever they want, and the company says it cannot access them. The editor runs as client-side JavaScript in the browser, so diagrams are processed on the user's machine.

The app is free, and its source code is on GitHub under Apache-2.0, so teams can run their own copy. It is a focused diagram editor rather than a whiteboard, so it has no sticky-note whiteboard layer like Miro or FigJam. For documentation, architecture diagrams and flowcharts that must live in a repository or a company drive, draw.io is a practical choice.

Key features

  • Open source, Apache-2.0 licensed
  • Flowcharts and technical diagrams
  • Client-side editor in the browser
  • Storage of your choice

Strengths

  • Free and open source under Apache-2.0
  • Diagrams can be stored wherever the user chooses
  • Strong fit for flowcharts and architecture diagrams

Limits

  • A diagram editor rather than a whiteboard
  • No sticky-note whiteboard layer like Miro

Where draw.io ranks

ListRankScoreBest for
Best Whiteboard and diagramming tools2 of 690.0Flowcharts and architecture diagrams stored as files

Questions about draw.io

Is draw.io free?
draw.io can be used without paying: Free and open source under Apache-2.0. Check the vendor’s pricing page for current limits.
Is draw.io open source?
Yes. draw.io publishes its source code under the Apache-2.0 license.
Which platforms does draw.io support?
draw.io is available on: Web.
What is draw.io best for?
Flowcharts and architecture diagrams stored as files. In our ranking of whiteboard and diagramming tools it is number 2 of 6 with a score of 90.0.
What are the best alternatives to draw.io?
The highest-ranked alternatives on listme.name are Miro, FigJam, Excalidraw, Mural.