This is a quick tip…..if you would like to know the location of your Oracle SQL Developer connections, there is a connection file (in JSON format) located:

C:\Users\YOUR_ACCOUNT\AppData\Roaming\SQL Developer\system21.2.0.187.1842\o.jdeveloper.db.connection

in my case the Oracle SQL Developer version is the latest (at the time of writing this blog version 21.2) so you will find system21.2 folder name is referenced in the above path.

File name: