GPJ File Type

- The quick facts

What are GPJ files and how to open them

Are you having problems opening a GPJ file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a GPJ file?

A .GPJ file is a JGRASP Project file.

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open GPJ files

Important: Different programs may use files with the GPJ file extension for different purposes, so unless you are sure which format your GPJ file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 10 different GPJ openers which you will find listed below.

Last updated: December 17, 2014

Various apps that use files with this extension

These apps are known to open certain types of GPJ files. Remember, different programs may use GPJ files for different purposes, so you may need to try out a few of them to be able to open your specific file.

B's RecorderB's RecorderUser submitted
GX DeveloperGX DeveloperUser submitted
B's Recorder GOLD9B's Recorder GOLD9User submitted
B's Recorder GOLD5B's Recorder GOLD5User submitted
B's Recorder GOLD9 PLUSB's Recorder GOLD9 PLUSUser submitted
jGRASPjGRASPUser submitted
Gertrudis ProGertrudis ProUser submitted
GX Developer-FXGX Developer-FXUser submitted
gINTgINTUser submitted
MULTI DebuggerMULTI DebuggerUser submitted

Help us help others helps thousands of users every day, and we would love to hear from you if you have additional information about GPJ file formats, example files, or compatible programs. Please use the links below or email us at to discuss further.