draw.io (diagrams.net)
Free online diagramming tool
⭐ 4.4/5 (5800 reviews)
About draw.io (diagrams.net)
draw.io is a completely free, open-source diagramming tool that works online and offline, with integration into Google Drive, Confluence, and more.
Key Features
- Completely free diagramming
- Works offline
- Google Drive integration
- Confluence and Jira plugins
- Extensive shape libraries
- Multiple export formats
✅ Pros
- Completely free forever
- Works offline
- Great Confluence integration
- No account needed
❌ Cons
- Less polished than Lucidchart
- UI can feel cluttered
- Limited collaboration
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