Draw.io is a free, web-based tool ideal for quick diagramming and collaboration, while OmniGraffle is a powerful, professional tool suited for complex diagrams and graphic design, but it comes with a price and is limited to Mac users.
OmniGraffle
Pros:
Powerful features for professional use
High-quality graphics and precision
Great for complex diagrams
Extensive shape library
Offline capabilities
Good customer support
Robust performance
Intuitive interface for Mac users
Version control
Advanced export options
Cons:
Paid software with no free version
Mac only, limiting accessibility
Higher learning curve for new users
Less collaborative compared to Draw.io
Can be overwhelming for beginners
draw.io
Pros:
Free to use
Web-based and easy to access
Supports real-time collaboration
Wide range of templates and shapes
Integrates with Google Drive and other services
Strong community support
Regular updates and improvements
User-friendly interface
Customizable features
Good export options
Cons:
Limited advanced features compared to OmniGraffle
Dependent on internet connection for full functionality