When comparing SchemaCrawler vs DbSchema, the Slant community recommends DbSchema for most people. In the question“What are the best database design programs?” DbSchema is ranked 4th while SchemaCrawler is ranked 9th. The most important reason people chose DbSchema is:
Includes the possibility to edit tables and data directly in the diagram without writing SQL statements.
Specs
Ranked in these QuestionsQuestion Ranking
Pros

Pro Many options for output formats in addition to graphical
The text-based output serves for database documentation, and is designed to be diff-ed against other database schemas.

Pro Extensive and detailed documentation online
Including visuals of the results of command-line option usage.

Pro Free
Pro Graphical Diagram Editor
Includes the possibility to edit tables and data directly in the diagram without writing SQL statements.
Pro Multi-platform
Runs on Windows, Mac, and Linux.
Pro Virtual Foreign Keys
If the Database schema is missing real foreign keys, it is possible to create virtual ones to be used within the tool.
Pro Generator for Random Data
Includes the possibility to generate random numerical data or fetch random entries from a text file to populate the database.
Pro Generate schema from existing database
Includes the possibility to generate an ER diagram from an existing database.
Pro SQL editor with syntax highlighting
Includes an SQL editor with syntax highlighting and code completion feature.
Pro Graphical Query Editor
Includes a visual query editor capable of using different join types, filters as well as the 'group by' clause.
Cons
Con Need Java

Con Does not work with schema dumpfiles
SchemaCrawler has no methods for dealing with when you only have a schema generated via something like (mysqldump --no-data [options] >schema-only_dump.sql) , and do not currently have access to a live database to connect with.
