NDS to CIA Converter

Convert Nintendo DS (.nds) files to CIA format for use on 3DS systems with this free online tool.

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About This Tool

This tool allows you to convert Nintendo DS ROM files (.nds format) to CIA format, which is used for installing games and applications on Nintendo 3DS systems with custom firmware. Simply upload your NDS file, configure conversion options if needed, and download the resulting CIA file. The conversion process preserves game data and creates a properly formatted CIA file ready for installation.

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How to Use

Click the upload area or browse to select your NDS file.
Configure optional settings like output file name and region.
Click the 'Convert to CIA' button to start the conversion.
Wait for processing to complete.
Download your converted CIA file from the results page.

Frequently Asked Questions

Find Quick Answers

What is the difference between NDS and CIA files?

NDS files are ROMs for Nintendo DS games, while CIA files are installation packages for Nintendo 3DS systems. CIA files contain the game data in a format that can be installed directly to the 3DS home menu.

Do I need special software to use the converted CIA files?

Yes, you need a Nintendo 3DS with custom firmware (CFW) installed to install and run CIA files. The converted files won't work on standard, unmodified 3DS systems.

Is there a file size limit for conversion?

The tool can handle NDS files up to 512MB in size, which covers most Nintendo DS games. Larger files may take longer to process.

Will the conversion work with all NDS files?

The tool works with standard Nintendo DS ROM files. Some modified or encrypted NDS files may not convert properly. Always ensure you have the right to convert and use the files.

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