Why convert NEF to PNG?
PNG is lossless, which avoids the compression artifacts JPEG introduces - useful for compositing, web graphics with sharp edges, or any workflow where JPEG smearing would be a problem. .PNG also supports an alpha (transparency) channel, though converted photos won't use one. For ordinary photo sharing JPEG is smaller and more practical; PNG makes sense when lossless rendered output is the specific requirement.
How to convert NEF to PNG
darktable OPEN-SOURCE
Import the NEF, develop it in the darkroom view, then export as PNG at 8-bit or 16-bit; batch export is also supported.
RawTherapee OPEN-SOURCE
Open the NEF in the File Browser, set output format to PNG in the Queue panel, and click Start Processing.
IrfanView + RAW plugin FREE
Install IrfanView with the Plugins pack, open the NEF, and save as PNG; Batch Conversion handles whole folders at once.
Command line - ImageMagick CLI
Convert a file with magick input.nef output.png.
Programs that convert NEF
About these formats
.NEF
Nikon Electronic Format (Nikon camera raw image)
A NEF file is a raw image from a Nikon camera - the unprocessed sensor data, like a digital negative. On Windows, install the free Raw Image Extension from the Microsoft Store to see…
Open .NEF details →
.PNG
Portable Network Graphics
A PNG (Portable Network Graphics) is a lossless raster image format. Every modern OS, browser, and image app opens PNGs natively - just double-click. The most common questions are not about…
Open .PNG details →Quality & what to watch
- PNG is lossless but fully rendered - the raw's highlight and shadow recovery is gone on export; keep the original NEF as your editing master.
- Export at 16-bit PNG if you plan further editing; 8-bit is sufficient for web use.
- PNG carries minimal EXIF - Nikon MakerNote data such as lens ID, focus point, and GPS is not preserved; export to TIFF if full metadata retention matters.
