DbVisualizer vs DbSchema

This is a good and stable tool with really good and useful functionality: import/export, SSH tunnelling, fast searching, duplication, DDL visualization etc. If you are a professional, don't complain about the pricing. If you're an amateur, maybe this isn't for you.

Makes it really easy to stub out example data while developing, just change the values with unique constraints and you have extra data ready to go.

Has a search box that will highlight any matching row, regardless of what field is matched (spans multiple columns).

Allows you to edit and save db rows through a spread-sheet like editor.

Includes the possibility to edit tables and data directly in the diagram without writing SQL statements.

Runs on Windows, Mac, and Linux.

If the Database schema is missing real foreign keys, it is possible to create virtual ones to be used within the tool.

Includes the possibility to generate random numerical data or fetch random entries from a text file to populate the database.

Includes the possibility to generate an ER diagram from an existing database.

Includes an SQL editor with syntax highlighting and code completion feature.

Includes a visual query editor capable of using different join types, filters as well as the 'group by' clause.