Open .nef files online
To open a .nef file in your browser, press Open editor on the RAW photo editor, then choose File > Import Photos and pick your file. The Nikon RAW photo joins the editor's library and opens in the develop view with a histogram and exposure, color and tone controls. On 2026-10-28 we opened a public-domain (CC0) 25 MB NEF from a Nikon D750 (14-bit, lossless compressed, from raw.pixls.us); it opened within 15 seconds and showed the right picture, a studded metal ball on red fabric, with ISO 100, 35 mm, f/1.8, 1/30 on the info line. We raised Exposure to +1.00 and exported a full-size JPEG, an 8-bit TIFF and a Rendered photo DNG, all 6032 x 4032. All three read back correctly in macOS tools, and the framing matched the camera's embedded JPEG and macOS's own rendering; our export was brighter, as set. The Raw data DNG option did nothing in our test. Nikon high-efficiency NEF files, from some newer mirrorless cameras, are listed as not decoded yet and we did not try one. Nothing is uploaded and there is no sign-up.
Best on a desktop browser. This editor has desktop menus and shortcuts.
Can I open it?
To export: in File > Export, type any name in the Folder box first (we used exports), or the export button only shows “Choose an export folder first.” and nothing downloads. The browser version has no folder picker, and the file still goes to your downloads.
| Check | Result | Notes |
|---|---|---|
| Listed by the engine | Listed in docs | Nikon NEF is listed as supported (uncompressed, lossless and lossy compressed). The project lists Nikon high-efficiency NEF decoding as not done yet. In our test the Export dialog lists JPEG, PNG, TIFF, PSD, WebP, AVIF, JPEG XL, DNG and the original file. |
| Opened a .nef file | Works | File > Import Photos with a 25 MB lossless-compressed 14-bit NEF from a Nikon D750 (a public-domain sample from raw.pixls.us). It was added to the library as NEF and opened in the develop view within 15 seconds: a studded metal ball on red fabric showed, with no Preview only notice, and the histogram drew. The info line read ISO 100, 35 mm, f/1.8, 1/30. The system file chooser worked, so no drag and drop was needed. |
| Edited it | Works | We typed 1 into Exposure in the Light panel. It read +1.00, the picture got brighter and the histogram moved right. |
| Exported as JPEG | Works | File > Export with Full size ticked (quality 90) wrote a 4.0 MB .jpg. The file command and macOS sips read it as a 6032 x 4032 JPEG with the camera model, the shot time and the software name LightCraft in its metadata. macOS and the camera's embedded JPEG report 6016 x 4016 for the same file, so the export is 16 pixels larger in each direction; the framing is otherwise the same. |
| Exported as TIFF | Works | TIFF with 8-bit depth, ZIP compression and Full size gave a 38.2 MB .tif, which sips reads as 6032 x 4032. Its tags show 8-bit RGB with Deflate compression and a color profile. |
| Exported as DNG (Rendered photo) | Works | The Rendered photo option downloaded a 109 MB .dng. sips reads it as a 6032 x 4032 DNG from the same camera, and the JPEG sips makes from it matches our edited JPEG (average difference about 6 on a 0 to 255 scale). Its TIFF tags show DNG version 1.4, 16-bit RGB with the LinearRaw type and Deflate compression, and the software name LightCraft DNG 2. It is a processed picture in a DNG wrapper, not the sensor data. We did not open it in other RAW software. |
| Exported as DNG (Raw data) | Not supported | The Raw data option, described as raw photos as DNG with the edits embedded, did nothing: after OK no download started, and we waited 60 seconds on one attempt. The same option also failed in our earlier DNG, ARW, RAF and RW2 tests. |
| Compared with other renderings | Works | We put our JPEG next to the camera's embedded JPEG and macOS's own rendering of the NEF. The framing matches and the color balance is close. Our export is brighter, which matches the +1.00 we set: average brightness 56 against 36 for the camera JPEG and 35 for macOS. Brightness patterns correlate at 0.97 with the camera JPEG and 0.98 with macOS. We did not judge fine color accuracy beyond that. |
| Other export formats | Not tested yet | The Export dialog also lists PNG, PSD, WebP, AVIF, JPEG XL and Original files. We did not try them. |
| Other NEF variants and cameras | Not tested yet | We only tried one D750 file. Uncompressed and lossy NEF, Z-series cameras and Nikon high-efficiency NEF (listed as not decoded yet) are Not tested yet. |
| Phone screen (390 px wide) | Not tested yet | Not tested for this format. |
Our test file open in the raw photo editor on anyedit.app, 2026-10-28