Convert RAW photos to PNG
Your files are processed on your device. We never upload them.
How to convert RAW photos to PNG
- 01A ▸Choose your RAW files, or drop them on the page.
- 02A ▸Select Convert to PNG.
- 03A ▸Download each PNG, or all of them as a zip.
About RAW to PNG
Where RAW files come from
RAW files come from cameras by Canon, Nikon, Sony, and others that save DNG. Many editors, web tools, and every phone gallery can't open them. A PNG of the camera's preview opens anywhere and adds no further compression while you edit.
What changes
- The camera's embedded JPEG preview is used, with the camera's own colour and picture style. Sensor data isn't reprocessed.
- The picture is turned upright as the camera recorded.
- The PNG stores the preview without further loss; the file is about ten times the JPG's size.
- Camera details and location aren't copied.
Measured
A synthetic RAW file laid out like a Nikon NEF (24-megapixel sensor data plus a full-size 12-megapixel preview), converted in Chrome on a laptop. Phone timings are still to be measured.
| RAW file | 47 MB |
|---|---|
| PNG file (3024 by 4032, upright) | 12 MB |
| Time in Chrome (laptop) | 0.9 seconds |
In your browser
No browser reads RAW files, but these formats are TIFF inside. The preview is found in plain JavaScript, decoded by the browser's own JPEG decoder, and saved as PNG by the browser. Nothing extra is downloaded.
Limits
- The PNG is the size of the preview the camera stored, full size on most cameras but smaller on some.
- It is 8-bit, so the RAW file's extra highlight and shadow range isn't there.
- CR3, RAF, ORF, RW2, and PEF files aren't supported yet.
- Very large previews may be reduced to about 16 megapixels on iPhones. The result says so.
Other options
- RAW to JPG: a much smaller file for sharing.
- Resize image: make the pictures smaller in pixels.
- Image to PDF on Open PDF Toolkit: put the photos into a PDF.
Questions
Which RAW formats work?
Canon CR2, Nikon NEF and NRW, Sony ARW, and Adobe DNG. Canon CR3, Fujifilm RAF, Olympus ORF, Panasonic RW2, and Pentax PEF don't work yet.
Are my photos uploaded?
No. Your files are processed on your device. We never upload them.
Is the PNG as good as the RAW?
No. The PNG is a lossless copy of the camera's built-in preview, which is an 8-bit JPEG made by the camera. It keeps that preview exactly, with no further loss, but not the RAW file's extra range for editing exposure.
Why choose PNG over JPG?
PNG adds no new compression, which helps if you will edit and save the picture several times. JPG is about a tenth of the size and fine for sharing.
Is the photo turned the right way up?
Yes. The converter reads the orientation the camera recorded and turns the picture upright.