diagrams.net
Free, open, simple, online diagramming.
Overview
diagrams.net (formerly draw.io) is a completely free and open-source diagramming application. It can be used online in a web browser or as a desktop application. It offers a wide range of shapes and templates for creating network diagrams, flowcharts, and cloud architectures, and integrates directly with cloud storage providers.
✨ Key Features
- Completely Free and Open Source
- Extensive Shape Libraries
- Runs Online or as a Desktop App
- No Registration Required
- Integration with Google Drive, OneDrive, Dropbox, GitHub
- Data Security (diagrams stored client-side)
🎯 Key Differentiators
- Completely free with no feature restrictions
- Strong focus on data privacy and security (client-side storage)
- Open source
- Available as an offline desktop application
Unique Value: Provides a powerful, full-featured diagramming tool for free, with a strong commitment to user privacy and data ownership.
🎯 Use Cases (4)
✅ Best For
- Quickly creating and sharing a network diagram without needing a paid account or software installation.
💡 Check With Vendor
Verify these considerations match your specific requirements:
- Automated diagram generation
- Real-time multi-user collaboration (less seamless than Lucidchart)
- Data linking to live sources
🏆 Alternatives
Offers a compelling free alternative to paid tools like Lucidchart and Visio, with the trade-off being less sophisticated collaboration features.
💻 Platforms
✅ Offline Mode Available
🔌 Integrations
🔒 Compliance & Security
💰 Pricing
Free tier: Fully featured, no limits.
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