CR2 vs G3 — Comparison & Free Converter
Fast, instant CR2 (CANON) to G3 (FAX) conversion. No signup required. Just drop your .cr2 file and get .g3 in seconds.
Batch Settings
About CR2 (CANON) to G3 (FAX) Conversion
CR2 or G3 — which format should you use? The answer depends on your needs. Here's a quick breakdown.
CR2 is Canon's RAW photo format containing unprocessed sensor data for maximum editing flexibility. It has limited platform support. G3 is a widely used file format. It has common platform support.
So when should you convert CR2 to G3? This conversion is ideal when you When you need a G3 file. This conversion helps you convert between formats quickly.
Converting CR2 to G3 maintains high quality with CocoConvert's optimised encoder settings.
If you've decided G3 is the right choice, CocoConvert makes the conversion effortless. Upload your .cr2 file, pick G3, and click Convert — done in seconds. The converter runs on secure servers in Germany, powered by FFmpeg, Sharp, and qpdf. Files are encrypted via TLS and erased within 24 hours.
Free tier: 5 files/hour, 250 MB each. Pro: 100 files/hour, 5 GB each. Works in every modern browser on desktop and mobile.
How to Convert CR2 (CANON) to G3 (FAX)
- 1
Choose your CR2 file
Upload your .cr2 file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to G3
Select .g3 from the output options. The converter applies optimal quality settings automatically.
- 3
Run the conversion
Click Convert. Server-side processing means your device stays fast — even for large image files.
- 4
Get your G3 file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert CR2 (CANON) to G3 (FAX)
Your CR2 file is decoded and re-encoded as G3.
Your CR2 file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in G3 format
The converted file is ready for download
Format Comparison
CR2 (Canon)
.cr2 file
| Extension | .cr2 |
| MIME Type | image/x-canon-cr2 |
| Category | Image |
G3 (FAX)
.g3 file
| Extension | .g3 |
| MIME Type | image/g3fax |
| Category | Image |
Should You Convert CR2 (CANON) to G3 (FAX)?
When to Convert
- ✓When you need a G3 file
Frequently Asked Questions
Should I use CR2 or G3?
It depends on your goal. CR2 preserves full quality. G3 preserves full quality. Choose based on whether file size or quality matters more for your use case.
Is G3 higher quality than CR2?
Not necessarily. Converting CR2 to G3 maintains high quality with CocoConvert's optimised encoder settings. Quality depends on the compression type and settings, not just the format name.
Can I convert CR2 to G3 on Mac and Windows?
Yes. CocoConvert is a web-based tool that works in all modern browsers — Chrome, Safari, Firefox, Edge — on any operating system including macOS, Windows, Linux, iOS, and Android.
Is CocoConvert free for CR2 to G3?
Yes. Free users get 5 conversions per hour (250 MB each). Pro subscribers unlock 100 files per hour, 5 GB per file, and priority processing.
What tools does CocoConvert use for CR2 to G3?
CocoConvert uses FFmpeg for audio/video, Sharp for images, and qpdf for documents — the same open-source libraries used by Netflix, YouTube, and major enterprise platforms.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.