Convert CEL to CG4

CEL to CG4 made simple. Add files or folders, pick your settings, click Convert. reaConverter handles the rest — even thousands of files.

Got a folder full of CEL files? reaConverter batch converts them to CG4 in minutes, not hours. Local processing means instant results, even with thousands of files.

Download
reaConverter
Convert
CEL to CG4
Online
Convert

How to Convert Multiple CEL Files 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 logo
Install reaConverter

2. Load your CEL files

Start reaConverter and add your .cel files. The software processes everything locally, so your files never leave your computer.

Use drag-and-drop, folder browser, or right-click conversion from Explorer.

Load your CEL files into reaConverter

3. Select CG4 as output format

Select CG4 from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

Select CG4 as output format

4. Start CEL to CG4 conversion

Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Start Conversion

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your CG4 output.

CEL to CG4 Converter

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

Download Free Trial

Do more with your files

Converting CEL 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 19, 2026
"reaConverter saved our team hundreds of hours by digitizing decades of CG4 archives in weeks—not months. Its resolution scaling preserved every detail, even in files older than some team members!"
Anna K.
Anna K.
Satisfied Customer
"This software just works! My old laptop can’t handle Photoshop, but reaConverter flies through conversions without breaking a sweat. Wi-Fi gone? Still strong!"
Robert Williams
Robert Williams
Happy User
"Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!"
Henry R.
Henry R.
Happy User
"For cross-platform compatibility, JPEG remains the gold standard. reaConverter’s precision conversions ensure perfect results every time, whether for presentations, websites, or client deliverables."
Paul Baker
Paul Baker
Happy User
"Finally an app that actually opens my weird files! Saves me from format frustration daily."
Kyle Brooks
Kyle Brooks
Happy User
"This converter delivers exceptionally quick format conversions with reliable results every time."
Brian White
Brian White
Happy User

CEL to CG4 Conversion: FAQ

What are CEL files?

The CEL extension is associated with several types of image files. It can represent a KiSS CEL file, which is a raster image format created with a Japanese software program called Kisekae Set System. The program uses interactive animations to create "paper dolls". The CEL format can also be associated with Lumena CEL, a type of bitmap image used with Time Arts Software.

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 CEL to CG4?

Yes! reaConverter instantly converts .cel 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.

Can I convert CEL to CG4 online?

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

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

The best way to change CELs 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 CEL to CG4.

How can I automate CEL 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 CEL 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 cel to cg4 converter for batch processing.

What else can I do with reaConverter?

Change format settingsChange DPIConvert vector filesChange color spaceConvert PDF files

Find out more

Get advanced software for file conversion, processing, and editing, giving you complete, precise control over your work.
Download
reaConverter
Buy Now
reaConverter software