Convert BMP to CG4

Stop converting BMP files one by one. reaConverter processes entire folders to CG4 automatically — just drag, drop, and click Convert.

Tired of converting BMP files one at a time? reaConverter processes entire folders to CG4 automatically. Handles large batches reliably without crashes or timeouts.

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BMP to CG4
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BMPCG4

How to Convert Multiple BMP Images to CG4?

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. reaConverter also includes editing tools: resize, crop, rotate, and more.

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Install reaConverter

2. Load your BMP files

Launch reaConverter and drop in your BMP 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 BMP files into reaConverter

3. Select CG4 as output format

Pick CG4 as output format and choose the destination folder where you want to save new .cg4 files.

Select CG4 as output format

4. Start BMP to CG4 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 CG4 files in the destination folder you selected.

BMP to CG4 Converter

reaConverter offers the fastest, simplest solution for converting your BMP files into CG4 in seconds - all images processed on your PC for maximum privacy and speed.

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Do more with your images

Converting BMP images for use in a larger project? With reaConverter, you can convert, edit, and enhance your images in one streamlined process.

Our range of editing options includes such image processing actions as Resize, Rotate, Crop, Color Replace, Watermarks and more. Adjust actions include RGB, HLS, HSV, Brightness and Contrast. Auto-processing options are also available, such as auto-rotate and auto-crop.

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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
"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
"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
"An ultra-fast solution for minimizing file sizes. The entire conversion process takes just 3 minutes!"
Logan B.
Logan B.
Satisfied Customer
"I use the online converter — it’s quick and hassle-free!"
Jian Wong
Jian Wong
Happy Online User

BMP to CG4 Conversion: FAQ

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.

What are CG4 files?

CG4 is a raster format associated with CALS (Continuous Acquisition and Life-Cycle Support) — a program initiated by the US Department of Defense to capture and link military data. CG4 is compatible with a very limited number of digital graphics programs. Files with this extension contain a bitmap that often uses the CCITT4 compression, which is an old fax machine standard used for black-and-white images.

Can reaConverter convert BMP to CG4?

Yes! reaConverter instantly converts .bmp to .cg4 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.

What is reaConverter used for?

reaConverter is a software program used for converting images and other types of files from one format to another. It supports a wide range of file formats and allows users to convert multiple files at once, making it a valuable tool for graphic designers, photographers, and other professionals who work with digital images. reaConverter also includes features for resizing, cropping, and editing images, along with batch processing capabilities that help automate repetitive tasks.

Can I convert BMP to CG4 online?

If you only need to convert a few BMP files to CG4 format, feel free to try our free online free online BMP to CG4 converter — perfect for small batches with no installation needed!

How can I turn BMP files into CG4 on my computer?

The best way to change BMPs to CG4s 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 BMP to CG4.

How can I automate BMP to CG4 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 BMP files to CG4 using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line bmp to cg4 converter for batch processing.

What else can I do with reaConverter?

Convert DICOM imagesResize pictureConvert vector imagesConvert picture color spaceConvert Gerber images

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