AU3 File Type

- The quick facts

What are AU3 files and how to open them

Are you having problems opening an AU3 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 AU3 file?

The .au3 file extension is most commonly associated with the AutoIT v3 freeware scriptiong application. This software uses a programming language that is comparable to the BASIC programming language. The AU3 files contain automated scripts that have been created with this program. They are used to automate commands within the Windows operating environment.

How to open AU3 files

Important: Different programs may use files with the AU3 file extension for different purposes, so unless you are sure which format your AU3 file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 3 different AU3 openers which you will find listed below.

Last updated: January 12, 2020

Suggest another file format using extension AU3

While we know of one file format using the .AU3 file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .AU3 file.

Various apps that use files with this extension

These apps are known to open certain types of AU3 files. Remember, different programs may use AU3 files for different purposes, so you may need to try out a few of them to be able to open your specific file.

SciTESciTEUser submitted
SciTE4AutoIt3SciTE4AutoIt3User submitted
AutoIt ScriptAutoIt ScriptUser submitted