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ACORN Converter
Need ACORN files in a different format? reaConverter batch converts to JPG, PNG, PDF, TIFF and more.
How to Convert .acorn Files in Bulk
1. Install reaConverter
2. Select ACORN Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless ACORN file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.
Extra Tools
Do more with your files
Converting ACORN files for use in a larger project? reaConverter offers many ways to process files, so you can customize them according to your requirements.
Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.
User reviews
From those who tried it
Average User Rating:Last updated on June 25, 2026
Questions & Answers
ACORN files: Frequently Asked Questions
What are ACORN files?
ACORN files are primarily linked with Acorn Sprite or RISC OS Sprite and are utilized to store bitmap images that can have a maximum of 32 bpp. These files are often utilized to store application icons or screenshots, however, they are also able to store numerous images. Since the RISC OS system employs ACORN as its standard format for bitmap images, these files are primarily found on systems running this type of operating system, such as the Acorn Archimedes. It should be noted that RISC OS was an operating system that was widely utilized during the late 1980s and 1990s, and currently, ACORN files are considered to be outdated and rare.
Can reaConverter open ACORN files?
reaConverter fully supports the ACORN file format – open, edit, and export ACORN files to any other popular file format with ease.
How do I change ACORN to another format?
reaConverter is a user-friendly tool for converting ACORN files. Once installed on your computer, it allows you to convert all your .acorn files at once with just a few clicks. You can even convert acorn images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert ACORN online?
If you only want to convert a few ACORN files, you are welcome to try our free online ACORN converter.
How can I turn ACORN files on my computer to another format?
The best way to convert ACORN files on your PC is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from ACORN.
How can I automate ACORN files conversion?
reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.
Can I convert ACORN files using scripts or the command-line interface?
reaConverter provides full access to all its features from the Windows command-line shell, including the command-line acorn converter.
What else can I do with reaConverter?
Convert CAD formatsSet file dateConvert vector imagesSet new DPIConvert GIS files
What formats can I convert a ACORN file to?
Discover More
Beyond ACORN conversion
Convert .acorn files in batches of any size, with editing and processing applied along the way. The same tool also handles 700+ other formats, including CAD, medical imaging, and GIS.
