When comparing Schemaball vs Model Xtractor, the Slant community recommends Model Xtractor for most people. In the question“What are the best database design programs?” Model Xtractor is ranked 14th while Schemaball is ranked 15th. The most important reason people chose Model Xtractor is:
Generates complete diagrams of a database with one click.
Specs
Ranked in these QuestionsQuestion Ranking
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 Complete diagrams
Generates complete diagrams of a database with one click.
Pro Lightweight
Only a 5 Mb download.
Pro Multiple databases
Supports multiple databases: Oracle, SQL Server, PostgreSQL, MySQL, Azure, Amazon Redshift, SQLite and Firebird.
Pro Easy
Very user friendly.
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 Driver download
Some database drivers need to be installed manually, e.g. for PostgreSQL the Npgsql MSI installer.
