Convert HEIF to CG4

Convert HEIF to CG4 without uploading files anywhere. reaConverter works entirely on your PC — fast, private, and handles thousands of files at once.

reaConverter transforms HEIF files to CG4 quickly and reliably. Drag in folders, set your options, click Convert, done. No cloud accounts, no file uploads, no complicated setup. Just install and start converting.

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. Apply image edits like resize, crop, or color adjustment while converting.

Install reaConverter

2. Load your HEIF files

Load your HEIF files into reaConverter. You can add individual files or point to folders, and the software will queue everything automatically.

Select HEIFs from a folder or drag-and-drop them directly into the reaConverter window.

3. Select CG4 as output format

Choose CG4 for output and set your save location. reaConverter lets you customize quality and apply edits before conversion.

4. Start HEIF to CG4 conversion

Press the Convert button and reaConverter takes care of the rest. Processing time depends on file size and volume.

After processing, find all your new .cg4 files in the output location. The log shows details for each conversion.

HEIF to CG4 Converter

reaConverter offers the fastest, simplest solution for converting your HEIF 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 HEIF 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.

Image editing tools

User Reviews

Average User Rating:
Last updated on January 25, 2026

"If Apple’s HEIF format drives you nuts, this is the fix. Simpler than Adobe, faster than online tools, and reliable enough for pro workflows."

Noah F.

Satisfied Customer

"I needed to convert HEIF files for a personal project, and reaConverter made it shockingly simple. Drag-and-drop batch conversion, preset profiles, and fast outputs."

Mark Reynolds

Satisfied Customer

"5/5⭐ Finally! Does what it promises - converts AND tweaks images without complicated menus. Perfect for quick jobs."

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

Satisfied Customer

"I was skeptical at first, but reaConverter exceeded my expectations. The interface is intuitive, and the advanced settings let me tweak outputs perfectly. Plus, the customer support is fantastic!"

Sarah Lane

Satisfied Customer

"An ultra-fast solution for minimizing file sizes. The entire conversion process takes just 3 minutes!"

Logan B.

Satisfied Customer

HEIF to CG4 Conversion: FAQ

Can reaConverter convert HEIF to CG4?

Yes! reaConverter instantly converts .heif 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 HEIF to CG4 online?

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

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

The best way to change HEIFs 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 HEIF to CG4.

How can I automate HEIF 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 HEIF 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 heif to cg4 converter for batch processing.

What else can I do with reaConverter?

Copy metadata (EXIF, IPTC)Convert DICOM files Image resizer Convert RAW photos Change format settings