Runs on your device · Your file never leaves your device.
DNG is the open raw format: iPhone ProRAW, the raw mode of Android cameras and apps like Lightroom Mobile, Leica, Ricoh GR and Pentax all write it, and other raws are often converted into it for archiving. This page develops DNG files on your own device and gives you JPGs at the quality or size you choose.
Because a DNG describes its own colour, the development is the most exact of all the raw formats: the sensor data is demosaiced, white-balanced as the camera set it, and turned into real colour through the matrices in the file, then matched to the preview the camera stored. Nothing is uploaded; a 12-megapixel phone DNG takes well under a minute.
How to convert DNG to JPG
Add one DNG file or a whole batch from the card or the camera app.
JPG is already selected. Set a maximum width or a size limit if the photo is going to a form.
Press Convert. The raw is developed on your device — this takes up to a minute per file.
Download the JPG, or a ZIP for a batch.
Supported formats and limits
Input
DNG 1.0–1.7 — phones, Leica, Ricoh, Pentax, and converted raws
Output
JPG, 8-bit sRGB, quality of your choice
Development
As-shot white balance, camera colour profile, matched to the camera’s own JPEG
Batch
Yes, ZIP download
Where it runs
In your browser; nothing uploaded
Not for: Raw editing — exposure, white balance and recovery are not adjustable here; the development uses the settings stored in the file.
Frequently asked questions
Are my files uploaded to a server?
No. This conversion runs entirely inside your browser using your own device’s processing power. The file never leaves your computer or phone, which is why it also works when your connection drops.
Does it read iPhone ProRAW?
Yes. A ProRAW file from an iPhone 12 Pro was checked here. ProRAW also stores a local tone map that Apple’s own rendering applies; it is not applied here, so the result can look a little flatter in the shadows than the phone’s JPEG.
Which DNG versions and compressions?
DNG up to version 1.7, with the sensor data uncompressed or in lossless JPEG. Files from a Pentax K10D, a Ricoh GR, a Leica M8 and an iPhone were checked.
What about a DNG converted from another camera’s raw?
It is a normal DNG and is developed the same way. The embedded preview, if the converter kept one, guides the colour.
Is the camera information (EXIF) kept?
No. The JPG is rebuilt from the pixels alone, so camera model, exposure, date and location are not carried over. For a photo you are about to upload to a form or share, that is usually what you want.
Is there a size limit?
A picture is reduced, keeping its proportions, when it is larger than the memory a browser tab can hold: above about 16 megapixels on a phone or tablet, above 60 megapixels on a computer. Anything below that keeps every pixel.
Why does the first file take a moment to open?
The reader for these files is a 3.5 MB engine that is downloaded from this site the first time one of them is opened in a visit, then kept for the rest of the visit. It runs in a background thread of your browser; the file itself is never sent anywhere.