dbForge Studio for Oracle Express is a free software that provides basic functionality for working with schema objects, user accounts, SQL scripts, and queries.
Key features:
- PL SQL editor with syntax highlight, bookmarks, and text search
- Visual editors for schema objects
- Object Viewer window
- Security Manager
- Session Manager
- Event Monitor
- Data editor with in-place filtering, grouping, and sorting - Multiple database connections in Database Explorer window - Full shortcut customization