OmniGraffle vs yEd
When comparing OmniGraffle vs yEd, the Slant community recommends yEd for most people. In the question“What are the best flowchart / diagram softwares?” yEd is ranked 4th while OmniGraffle is ranked 18th. The most important reason people chose yEd is:
With automatic layout you get great looking diagrams with very little effort. yEd has the most versatile and most complete collection of automatic layout algorithms.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Great for web layouts
Pro Automatic Layout
With automatic layout you get great looking diagrams with very little effort. yEd has the most versatile and most complete collection of automatic layout algorithms.
Pro Completely free
Pro Multi-platform
Runs on Windows, Linux and Mac OSX. There also is a Web application.
Cons
Con Help section could use improvements
Con Mac Only
OmniGraffle is a great tool, but its utility is limited by being trapped on one platform.
Con Clumsy UI
Con Not free-as-in-freedom
Not released under an open-source license.