.JG4 File Extension
File TypeBigJig Jigsaw Puzzle
What is a JG4 file?
Jigsaw puzzle file used by BigJig, a computer-based jigsaw puzzle game; contains a photo or painting that is broken into puzzle pieces; may use eight different shape styles including classic, modern, curl, artistic, bony, scrappy, distorted, and spriggy.
BigJig puzzles can also be created with JigMake, a puzzle creation program included with BigJig.