APJ File

What are APJ files and how to open them

Are you having problems opening an APJ file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your APJ files.

What is an APJ file?

APJ files have multiple uses, and ArduPilot JSON Firmware is one of them. Read more about the other uses further down the page.

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 ten different APJ openers which you will find listed below.

Last updated: February 20, 2024

All known file formats using extension .APJ

While ArduPilot JSON Firmware is a popular type of APJ-file, we know of 2 different uses of the .APJ file extension. Different software may use files with the same extension for different types of data.

ARM Project Manager Project

We know that one APJ format is ARM Project Manager Project. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

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.