This homebrew tool is essential for installing games (CIAs) directly on your 3DS.

When working with 3DS ROMs, you will encounter two main file types:

With the Nintendo 3DS eShop closed, fans are turning to custom firmware and ROMs to keep their favorite titles alive. Whether you're aiming to preserve your physical collection, try out fan-made romhacks, or play your games on a larger SD card, this guide covers the essential, legal methods for managing 3DS ROMs in 2026. 1. The Essentials: What You Need Before you begin, ensure you have the following:

These are raw dumps of game cartridges. They are often used by emulators like Citra .

Use the definitive 3ds.hacks.guide for up-to-date, safe instructions on installing Custom Firmware (CFW) such as Luma3DS . SD Card: A 32GB or larger SD card is recommended.

A powerful tool for dumping your own cartridges and managing files. 2. Understanding ROM Formats (.3DS vs. .CIA)

The Ultimate Guide to Nintendo 3DS ROMs: Preserving Your Digital Library (2026)