Convert NEF to GIF on Mac
Select the NEF files in Finder, press ⌥ F, choose GIF and press Return. FileFlip saves each GIF next to its original and works without an internet connection.

How to convert NEF to GIF with FileFlip
Select the NEF files
In Finder or on the Desktop. One file, or a whole folder with ⌘ A.
Press ⌥ F
FileFlip opens next to the selection and lists the formats it can make from NEF. Type “GIF” to jump to it.
Choose GIF and press Return
The GIF files appear next to the originals with the same names. The NEF files stay as they are.
NEF and GIF
Raw files are large and most apps and websites can’t show them, so they have to be developed into a regular image before sharing. GIF animations play everywhere, from chat apps to old email clients.
What changes when you convert
- A raw file is unprocessed sensor data. Converting develops it into a finished image, so keep the NEF if you may want to edit it later.
- GIF is limited to 256 colors, so photos can look grainy or banded.
| Property | NEF | GIF |
|---|---|---|
| Full name | Nikon Electronic Format | Graphics Interchange Format |
| Made by | Nikon | CompuServe |
| Compression | Unprocessed sensor data, lossless or lightly compressed | Lossless, up to 256 colors |
| Best for | Editing photos with the most room for adjustments | Short animations and simple graphics |
| Opens in | Raw editors such as Lightroom, plus Photos and Preview when macOS supports the camera model | Everywhere, including browsers and chat apps |
| File extension | .nef | .gif |
| In FileFlip | Opens | Opens and saves |
Other ways on a Mac
For one file now and then you may not need FileFlip. These work with what’s already on your Mac.
Preview
Open the NEF in Preview, choose File → Export, pick GIF from the Format menu and click Save. If GIF isn’t listed, hold Option while you click the Format menu. For several files, open them together, select all thumbnails in the sidebar and choose File → Export Selected Images.
Works when macOS supports your camera model.
Terminal
The sips command converts images in place or into a new file.
sips -s format gif DSC_0001.nef \
--out DSC_0001.gifBuilt into macOS and good for scripts. Run sips --formats to see what your macOS version can read and write.
Questions about NEF and GIF
Can I convert many NEF files at once?
Yes. Select them all in Finder, press ⌥ F and choose GIF. Progress moves to the menu bar, so you can close the panel and keep working.
Should I keep the NEF file?
Yes. The raw file holds more information than any finished image, so keep it if you may want to edit the photo again.
Where is the GIF file saved?
Next to the original, with the same name and the .gif extension. The NEF file isn’t changed. In Settings you can choose a different folder instead.
Can I convert GIF back to NEF?
No. FileFlip opens NEF files but doesn’t save them.
Are my files uploaded anywhere?
No. FileFlip converts files on your Mac and works with the internet turned off.
Convert a whole shoot at once
FileFlip also handles video, audio, PDFs, documents and data files. Requires macOS 14 Sonoma or later.
Coming soon for Mac