NasrTech

RAW in. Photo out.
All on your phone.

RAW to JPG Converter turns camera RAW files — DNG, CR2, CR3, NEF, ARW, RAF and more — into full‑resolution JPGs on Android. It reads each file first and tells you exactly what is inside, so you never get a grey rectangle where a photo should be.

Convert and view without limits · First photo saves free · Nothing uploaded · No account.

RAW to JPG Converter app icon: a sensor mosaic turning into a photograph

Every major RAW format, including phone DNG

Cameras and phones write RAW differently. Real cameras embed a finished full-size picture inside the file; phones store only sensor data. The app handles both.

DNGCR2CR3NEFARWRAFRW2PEFX3FSRWiPhone ProRAWPixel / Samsung / Xiaomi DNG

How it works

Four steps, and the second one is the difference from every other converter.

Pick RAW files

From your phone, an SD card or a card reader, through the normal Android picker.

See what is inside

Every file is read and sorted: full size, developed here, thumbnail only, or not a RAW file — with the reason.

Convert

Seconds per file, full resolution, with the date, camera and orientation kept in the JPG.

Save or share

To your gallery, or straight into a chat or post.

Full resolution, the honest way

Two routes, and the app always tells you which one it took.

Camera stored a finished picture Its exact pixels are copied out — no re-encoding, no quality lost, your camera's own colours. This is what Nikon, Canon, Sony, Fujifilm, Panasonic, Pentax, Leica and Sigma files get.
Phone DNG with no finished picture The sensor image is developed on the phone: demosaic, the file's own colour calibration, white balance, highlight handling. A real full-resolution JPG, where other apps produce grey.
Thumbnail only The file holds only a small preview and the sensor data is in a format the app cannot read yet. It says so instead of pretending.
No photo inside Nothing the app can turn into a picture. You are told before anything is converted, not after.

What it will not do

Nothing leaves the phone

No upload, no server, no account. Conversion works in flight mode. The only things the app ever sends are anonymous crash reports and usage counts — never a file name, never a pixel. Read the privacy policy.

Pricing

Free

Read, sort, convert and view any number of files. Your first photo saves to the gallery free — the real full-resolution file, so you can check the result on your own camera first.

One-time unlock

Saves every photo you ever convert and removes the ads. One payment, no subscription. Or watch a short ad to save one more file.

Questions

Why do the colours differ slightly from my camera's own JPEG?

Where the camera stored a finished picture inside the RAW, the app uses that exact picture — identical colours. For phone DNG files there is no finished picture, so the app develops the sensor data using the file's own colour calibration; the phone's camera app applies extra tuning on top of that, which is why they can differ a little.

Does it need the internet?

No. Reading, converting, viewing and saving all work offline.

My camera's file says "thumbnail only". Can that be fixed?

That format's sensor data is not decoded yet. Email the camera model to support@nasrtech.dev — formats are added by request, and the app will say so honestly until then.

Does it change or delete my RAW files?

Never. Originals are only read. Converted JPGs are written to Pictures / RAW to JPG when you tap Save.