NEF · Nikon RAW
Convert NEF to HEIC
NEF is Nikon’s RAW format, and on a high-resolution Z or D-series body the files are large — easily 40 to 60 MB each. A working Nikon library is one of the fastest ways to fill an iPhone. RawToHEIC converts your NEF files to HEIC inside Apple Photos, up to 10× smaller, keeping every edit, album, favorite, and location.
What is an NEF file?
A NEF file is a Nikon RAW photo — the unprocessed data straight off the sensor, saved by Nikon Z mirrorless and D-series DSLR cameras. It preserves maximum dynamic range and detail for editing, which is why it is large: typically 20 to 60 MB depending on the camera and bit depth. That latitude matters while you are working a shot, but a finished photo no longer needs it, and converting it to HEIC reclaims most of the space with no visible change.
Convert NEF right inside Photos
No exporting to Files, no importing back, nothing uploaded. Select your NEF photos in Apple Photos, tap Share, and let RawToHEIC convert them on iPhone, iPad, or Mac.
Everything about the photo is kept
- Edits, crops, and adjustments carry over exactly as they look in Photos.
- Album membership, favorites, captions, and keywords stay put.
- Location and full camera metadata (EXIF) travel with the HEIC.
- HDR is preserved with an ISO 21496-1 gain map.
- Your originals are never deleted until the HEIC is saved and verified.
Cameras that shoot NEF
NEF is written by Nikon Z mirrorless and D-series DSLR cameras, often 20–60 MB per photo. If you shoot any of these, RawToHEIC converts their files:
NEF questions, answered
What is a NEF file?
A NEF is a Nikon RAW photo — unprocessed sensor data from a Nikon Z or D-series camera, kept large to preserve full editing latitude.
How do I open a NEF file?
Apple Photos and Preview open NEF natively on a recent iPhone, iPad, or Mac, and RawToHEIC reads them straight from Photos.
Can I shrink my NEF files without losing edits?
Yes. RawToHEIC converts NEF to HEIC, about 10× smaller and visually identical, keeping your edits, album, favorite, location, and metadata.
Does converting a NEF reduce quality?
HEIC is lossy, so it trades a difference most people cannot see for a large drop in size. Keep originals for irreplaceable shots; convert the rest.
Will it delete my original NEF files?
Only if you choose to, per batch, and never until the HEIC is saved and verified. Deleted originals stay in Recently Deleted for 30 days.
Get your storage back.
Convert your NEF files to HEIC on-device, keep every edit and album, and reclaim the space — one purchase for iPhone, iPad, and Mac.
Not sure yet? Convert a few sample photos free — no install, nothing uploaded.
Try it free — no install →