Convert BFL to CG4

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

Online converters too slow for your BFL files? reaConverter works locally and handles unlimited batches. All processing runs locally on your PC, so your files stay private and secure.

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BFL to CG4
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How to Convert Multiple BFL Files to CG4?

1. Download and Install reaConverter

First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed.

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Install reaConverter

2. Load your BFL files

Open reaConverter and add your BFL files. You can load individual files, entire folders, or even nested subfolders.

Drop your BFL files into the window or use File menu to browse and select folders.

Load your BFL files into reaConverter

3. Select CG4 as output format

Choose CG4 as the target format. Pick a destination folder or let reaConverter save files alongside the originals.

Select CG4 as output format

4. Start BFL to CG4 conversion

Hit Convert and let reaConverter do the work. The progress window shows status for each file in real time.

Start Conversion

After conversion, find your CG4 files in the output folder. Click 'Show converted files' to open it directly.

BFL to CG4 Converter

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

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Do more with your files

Converting BFL 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.

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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
"An excellent program! I use it regularly in my work - it supports nearly every file format imaginable. The interface is intuitive and runs flawlessly every time."
Roger Cook
Roger Cook
Happy User
"For agencies handling confidential data, reaConverter eliminates cloud-upload risks while delivering unmatched conversion reliability. Our team uses it both in-office and remotely with identical results."
Jamal Bailey
Jamal Bailey
Satisfied Customer
"Our volunteer team uses reaConverter to prepare images for fundraising campaigns. The learning curve was minimal, and the results are professional-grade. The customer support team even helped us customize a workflow — fantastic service!"
Jason P. Bailey
Jason P. Bailey
Non-Profit Coordinator
"We deployed reaConverter across our department to standardize file formats for our archives. The command-line support and automation features integrated perfectly into our systems. Stellar performance and zero crashes—it just works."
David R.
David R.
IT Solutions Architect
"So simple! I just needed to convert a couple of files to another format, and for such a straightforward task, the online converter worked perfectly — delivering the files I needed in no time. Excellent service!"
Kenneth D. Carter
Kenneth D. Carter
Satisfied Customer

BFL to CG4 Conversion: FAQ

What are BFL files?

The BFL file format is associated with Big Flexible Line Interpretation, a feature which used to be available on Commodore 64 computers for increasing the number of colors rendered on screen. BFL files represented bitmap images that could be created and edited on the Commodore 64. The BFL format is currently obsolete, so in case you find such an image in your archive we recommend converting it to a more accessible format.

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 BFL to CG4?

Yes! reaConverter instantly converts .bfl 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 BFL to CG4 online?

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

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

The best way to change BFLs 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 BFL to CG4.

How can I automate BFL 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 BFL 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 bfl to cg4 converter for batch processing.

What else can I do with reaConverter?

Change file dateConvert RAW photo formatsCopy IPTC dataConvert DICOM filesPicture resizer

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