.3DSX File Extension

Nintendo 3DS Homebrew Launcher File

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What is a 3DSX file?

A 3DSX file is a homebrew application meant to be opened on a Nintendo 3DS using the homebrew launcher. It contains executable code that runs an unofficial 3DS app. 3DSX files are opened using Nintendo 3DS software exploits, such as soundhax and browserhax, that give players access to the homebrew launcher.

More Information

Homebrew launchers allow gamers to install and run unofficial games and other applications on video game consoles. The Nintendo 3DS's homebrew launcher is often used to play old Super Nintendo games and region-locked 3DS games, as well as run custom applications.

Homebrew 3DS games and applications are most often saved in the 3DSX file format. The 3DSX format is designed to function with a variety of homebrew exploits, to ensure that 3DSX-based apps can be run on any homebrew-enabled 3DS.

NOTE: The 3DS homebrew launcher is itself saved in a 3DSX file. This file is named boot.3dsx, and it should be placed at the root of your 3DS's SD card.

Common 3DSX Filenames

boot.3dsx - The 3DSX file used to launch the homebrew launcher.

How to open a 3DSX file

3DSX files are not meant to be opened on a PC. Instead, you should use your PC's file explorer to place your 3DSX file on your Nintendo 3DS's SD card (which can be connected to your PC using an SD card reader).

Typically, you should place 3DSX files other than boot.3dsx in your SD card's 3ds folder. (If your SD card does not have a 3ds folder, you will have to create one.) To run some 3DSX apps, you may instead need to create an app-specific sub-folder inside the 3ds folder and place your 3DSX file in that folder.

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Programs that open 3DSX files

Windows
Included with OS
Mac
Included with OS

Verified by FileInfo.com

The FileInfo.com team has independently researched the Nintendo 3DS Homebrew Launcher file format and Mac and Windows apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

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