When comparing Schemaball vs dbdiagram.io, the Slant community recommends Schemaball for most people. In the question“What are the best SQL graphical schema viewer / editor / import/export programs?” Schemaball is ranked 6th while dbdiagram.io is ranked 10th. The most important reason people chose Schemaball is:
Schemaball can read schemas from multiple sources such as SQL schema dumps, flat files or live databases.
Specs
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Pros
Pro Supports reading schemas from multiple sources
Schemaball can read schemas from multiple sources such as SQL schema dumps, flat files or live databases.
Pro Interesting twist on visual interface
Gives a quick way to grasp an overview on the past/present complexity of the database (or group of tables) undergoing inspection.
Pro Multi database
Can export to MySQL, PostgreSQL and SQL Server, can also import Ruby on Rails.
Pro Clean interface
Pro Ease of use
Cons
Con Visualizations may be hard to get used to
Since schemas are visualized by using stylized "schema balls" it may be hard getting used to them since they are so different from the other, more straightforward options.
Con Limited free version
The free version allows 10 diagrams and advanced options like color can not be used.
Con No Crowfeet
Does not show "Crowfeet" symbols in relations.