Convert GUN to BMP

Stop converting GUN files one by one. reaConverter processes entire folders to BMP automatically — just drag, drop, and click Convert.

GUN to BMP conversion is faster with the right tool. reaConverter handles everything from a few files to thousands in one batch. Processes files consistently every time, with full control over quality and output settings.

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How to Convert Multiple GUN Files to BMP?

1. Download and Install reaConverter

reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately.

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Install reaConverter

2. Load your GUN files

Launch reaConverter and drop in your GUN files. The software queues everything for batch processing with consistent settings.

Add files by dragging them in, browsing folders, or using the right-click menu from Windows Explorer.

Load your GUN files into reaConverter

3. Select BMP as output format

Pick BMP as output format and choose the destination folder where you want to save new .bmp files.

Select BMP as output format

4. Start GUN to BMP conversion

Then simply press the Convert button and your conversion will begin in no time!

Start Conversion

Once the conversion is complete, you can find your BMP files in the destination folder you selected.

GUN to BMP Converter

reaConverter offers the fastest, simplest solution for converting your GUN files into BMP in seconds - all files processed on your PC for maximum privacy and speed.

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Do more with your files

Converting GUN files for use in a workflow? 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.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on January 25, 2026
"The best online service for quick file conversion to JPG format - at least the best I've found! Just upload your file, select the format, click a button, and you're done. An excellent free tool that just works!"
Olivia Wilson
Olivia Wilson
Happy Online User
"Hands down the fastest JPG converter online! Upload → Select format → Download. Free, simple, and gets the job done in seconds."
Lin Zhang
Lin Zhang
Happy Online User
"This online converter works perfectly for small batches of files. I occasionally need to convert BMP to JPG, and it doesn't make sense to install software for such simple tasks. It's much easier to just visit the site, click a couple buttons, and get the same quality result in seconds."
Christopher Brown
Christopher Brown
Satisfied Customer
"Perfect for quick conversions! When I just need to turn a few BMPs into JPGs, this online tool saves me from installing software. Three clicks and done - couldn't be simpler!"
Rev. David M. Johnson
Rev. David M. Johnson
Happy Online User
"5/5⭐ Finally! Does what it promises - converts AND tweaks images without complicated menus. Perfect for quick jobs."
J. Mitchell
J. Mitchell
Satisfied Customer
"reaConverter is pure gold! Rock-solid performance with zero crashes. No internet needed—perfect for travel or low-connectivity work. The ultimate offline alternative to sketchy web converters. Plus, the desktop version keeps sensitive files secure since nothing ever gets uploaded to the cloud."
Malik T. Martin
Malik T. Martin
Satisfied Customer

GUN to BMP Conversion: FAQ

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.

What are BMP files?

The BMP or Bitmap file format is a popular raster graphic format, compatible with a wide array of image processing software, both on PC and Mac computers. BMP files store grids of pixels and detailed information concerning color tones and shades, and are highly appreciated for their ability to provide increased quality images. However, due to the lack of any compression algorithm in storing pixel data, BMP images can often be very large in size and thus difficult to store or transfer.

Can reaConverter convert GUN to BMP?

Yes! reaConverter instantly converts .gun to .bmp with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert GUN to BMP online?

If you only need to convert a few GUN files to BMP format, feel free to try our free online free online GUN to BMP converter — perfect for small batches with no installation needed!

How can I turn GUN files into BMP on my computer?

The best way to change GUNs to BMPs on your PC is to install 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 to BMP.

How can I automate GUN to BMP files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert GUN files to BMP using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line gun to bmp converter for batch processing.

What else can I do with reaConverter?

Copy IPTC dataConvert GIS filesConvert DICOM filesImage resizerChange file date

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