Convert camera RAW (DNG, CR2, NEF, ARW and more) to PNG locally - a true demosaic of the sensor data, lossless, no upload.
Running locally on your device ...
0%
Your files never left your device
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
RAW files hold your camera's unprocessed sensor data - the full capture before the camera turns it into a finished photo. Every maker cooks up its own format (Canon CR2 and CR3, Nikon NEF, Sony ARW, Fujifilm RAF, Panasonic RW2, Olympus ORF, Adobe DNG), and almost no program or browser shows them directly. This tool develops the RAW capture into a universal PNG you can open anywhere.
Unlike a mere preview export, this tool genuinely develops the RAW data: it reads the sensor's raw Bayer mosaic and runs a full demosaic - applying the camera white balance, the colour matrix and interpolation - to produce real RGB pixels, instead of just copying the embedded JPEG preview. PNG is lossless: the developed image data is not re-compressed. Everything runs entirely locally in your browser via libraw as WebAssembly, with no upload and even offline.
Choosing PNG pays off when you need a lossless result - as an intermediate for further editing, for screen graphics in documents, or when any compression would get in the way. The output is 8-bit RGB in the sRGB colour space, so the wide dynamic range of a 12- or 14-bit RAW is brought down to 8 bits. If you want a small, easily shareable image instead, JPG (RAW to JPG) is the more compact choice.
| Input formats | DNG, CR2, CR3, NEF, ARW, RAF, RW2, ORF, PEF, SRW |
|---|---|
| Output format | PNG |
| Batch processing | Yes |
| Processing | Locally in your browser (WebAssembly) |
| File upload | None |
Limitations: It processes the real sensor data via demosaic, not every maker-specific setting: camera picture styles, in-camera lens corrections or embedded edits are not applied. The output is 8-bit sRGB. Very large sensors are capped to protect memory, and files not recognised as RAW are rejected honestly.
No. The developing happens entirely locally in the browser (libraw as WebAssembly) - even offline.
No. The tool demosaics the raw sensor data into real RGB pixels, not the embedded JPEG preview.
Among others Adobe DNG, Canon CR2 and CR3, Nikon NEF, Sony ARW, Fujifilm RAF, Panasonic RW2, Olympus ORF, Pentax PEF and Samsung SRW.
PNG is lossless and does not re-compress the image data. For a small, shareable image, use RAW to JPG.
The output is 8 bits per channel (sRGB). That is enough for viewing and sharing; for 16-bit workflows use a desktop RAW developer.