raw format

What is a .CRW file?

CRW is Canon's original raw format from early EOS and PowerShot cameras, storing unprocessed sensor data in a proprietary CIFF container before Canon switched to CR2.

Full name
Canon Raw (legacy)
Developed by
Canon
Released
1996
Extension
.crw
MIME type
image/crw
Transparency
No

How to open a CRW file

CRW opens in Canon Digital Photo Professional, older Lightroom and Camera Raw; convert to DNG for long-term archiving.

What CRW files are used for

Professional photography

Maximum dynamic range and editing latitude.

Color grading

Recover highlights and shadows non-destructively.

Archival masters

Keep the untouched original alongside exports.

Strengths & limitations

✔ Strengths✖ Limitations
Maximum editing latitudeNo transparency support
Limited support — may need converting
Needs raw-capable software

Need more than a conversion?

Remove the background from CRW images, upscale to 4K, or generate new visuals with SharkFoto AI.

Frequently asked questions

CRW is Canon's original raw format from early EOS and PowerShot cameras, storing unprocessed sensor data in a proprietary CIFF container before Canon switched to CR2.

CRW opens in Canon Digital Photo Professional, older Lightroom and Camera Raw; convert to DNG for long-term archiving.

CRW is an unprocessed raw container, so no detail is discarded.

Use SharkFoto's free tools — upload your CRW file and convert it to a more convenient format in seconds. It's free, processed securely and never stored.

No — CRW doesn't store transparency; convert to PNG or WEBP if you need it.