.FRJ File Extension

Project file created by FreeForm-J, a GUI editor created in the Just BASIC programming language; stores a user-designed form and includes interface elements such as text, buttons, fields, and combo boxes; used for compiling front-end interfaces for Just BASIC applications.

NOTE: FreeForm-J is a Just BASIC program that includes a .BAS file and other packaged elements. You must compile it and run it in the Just BASIC application in order to design forms and save FRJ files.