APJ File Type

- The quick facts

What are APJ files and how to open them

Are you having problems opening an APJ 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 an APJ file?

APJ files have multiple uses, and ArduPilot JSON Firmware is one of them.

ArduPilot JSON Firmware

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 APJ files

Important: Different programs may use files with the APJ file extension for different purposes, so unless you are sure which format your APJ 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 APJ openers which you will find listed below.

Last updated: August 27, 2022

More file formats using the APJ extension

Through our research of APJ files, we know that the following formats exist. However, we have not yet analyzed them in detail.

  • ARM Project Manager Project

Various apps that use files with this extension

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

Help us help others

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