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GUN Converter
GUN conversion that keeps your files private. reaConverter runs offline on your PC with full batch processing.
How to Convert .gun Files in Bulk
1. Install reaConverter
2. Select GUN Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless GUN 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 GUN 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 30, 2026
Questions & Answers
GUN files: Frequently Asked Questions
What are GUN files?
GUN is an image file format associated with Gunpaint, a currently obsolete drawing software program initially designed for Commodore 64 computers. This brand was highly popular in the 1980s and 1990s, being one of the first types of personal computers to become widely used by home users. The GUN format might also have been compatible with other models of 8-bit Commodore computers, such as the Commodore 16, 128 or SX-64. Images created with Gunpaint are most likely difficult to open using regular image viewers, so converting them is the best option.
Can reaConverter open GUN files?
reaConverter fully supports the GUN file format – open, edit, and export GUN files to any other popular file format with ease.
How do I change GUN to another format?
reaConverter is a user-friendly tool for converting GUN files. Once installed on your computer, it allows you to convert all your .gun files at once with just a few clicks. You can even convert gun images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert GUN online?
If you only want to convert a few GUN files, you are welcome to try our free online GUN converter.
How can I turn GUN files on my computer to another format?
The best way to convert GUN 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 GUN.
How can I automate GUN 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 GUN 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 gun converter.
What else can I do with reaConverter?
Convert Gerber imagesConvert picture color spaceConvert RAW photo formatsConvert GIS filesConvert vector images
What formats can I convert a GUN file to?
Discover More
Beyond GUN conversion
Convert .gun 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.
