Dataedo - Database documentation tool
DBeaver - DBeaver - Universal Database Manager and SQL Client.
DbSchema - DbSchema - Visual Database Design & Management Tool
SQL Data Dictionary - Easily generate a PDF or HTML data dictionary from SQL Server with just a few clicks.
DbVisualizer - DbVisualizer is the universal database tool for developers, DBAs and analysts.
ApexSQL Doc - ApexSQL Doc creates database documentation in a variety of formats.