Let’s work together on a canonical answer.
Native Apps
Java-Based
- Oracle SQL Developer (free)
- SQuirrel SQL (free, open source)
- Razor SQL
- DB Visualizer
- DBeaver (free, open source)
- SQL Workbench/J (free, open source)
- JetBrains DataGrip
- Metabase (free, open source)
- Netbeans (free, open source, full development environment)
Electron-Based
(TODO: Add others mentioned below)