MillFile

Convert NEF to JPG

Nikon NEF files are unreadable to most websites, printers and email clients. Drop one here and get a full-resolution JPG back, decoded on your own device - nothing is uploaded.

Quality:

Selected: Standard

Other formats: RAW to JPGARW to JPGDNG to JPG

What a NEF needs before anyone else can open it

Nikon writes NEF as a TIFF-based container holding sensor data, a JPEG preview, and a set of maker notes that vary by model and by compression setting. That is why NEF support is uneven: a viewer that handles a D750 file can fail on a newer body that uses high-efficiency compression. LibRaw tracks those variants, and it is the decoder running inside this page.

Converting here instead of uploading means a 30 MB wedding frame never crosses the network. Our own measurement on a 26 megapixel file is roughly two to three seconds; a 45 megapixel frame takes noticeably longer and asks for more memory.

Nothing is uploaded. The RAW file is decoded in this tab by LibRaw compiled to WebAssembly — no upload step, no server copy, no account.

Questions about converting NEF to JPG

Does this work with high-efficiency NEF compression?

Usually. LibRaw covers the compression variants Nikon has shipped, but a decoder cannot know a format that postdates it, so a brand new body may be refused. When that happens the row says failed, and the original file is untouched on your disk.

Will the colours match what I see in Nikon software?

Not exactly. This page renders with the white balance recorded in the file and a standard demosaic, not Nikon's own Picture Control pipeline, so contrast and colour rendering differ slightly from NX Studio. You keep the full resolution and the highlight information; the look is a plain render.

Are the JPGs tagged with the capture date and lens?

No. The JPEG is encoded from the decoded pixels, so the camera metadata does not travel with it. If you need the EXIF later, keep the NEF - this page does not modify or replace it.

What quality should I pick?

Standard is the sensible default for sharing and printing. High keeps more detail at a larger file size, and Small suits email attachments and web forms where the file has to stay small.