NEF to JPG converter
Convert Nikon NEF files to JPG at full resolution, on your own device.
NEF is Nikon's format across the D-series and Z-series. Files vary considerably in size depending on whether the camera was set to 12-bit or 14-bit, compressed or uncompressed.
Nothing here is uploaded. NEF files routinely run from 20 to 80 MB, which is exactly the size that upload-based converters reject or throttle. Invo reads the file straight from your disk in the browser, so size is not a constraint.
How it works
Your Nikon camera writes a full JPEG preview inside every NEF file — that is what the rear screen shows you. Invo locates it in the file's directory structure and extracts it directly, usually at full sensor resolution and in under a millisecond.
At 100% quality those original bytes are handed straight to you, so there is no re-encoding and no quality loss whatsoever. If the file has no usable preview, Invo falls back to a full LibRaw decode with your camera's recorded white balance.
When to convert, and when not to
Convert to JPG for sharing, uploading, printing through a lab, or sending client selections. Keep the NEF as your negative — it holds the highlight and shadow latitude that makes serious editing possible, and a JPEG has already discarded it.
Need a smaller file afterwards? Compress it or resize it.
Questions
Can I open NEF files without Photoshop or Lightroom?
Yes. This page converts NEF to JPG in your browser with nothing to install.
Is there a size limit for NEF files?
No. Files are read locally rather than uploaded, so even a 100 MB file is fine.
Will the JPG be full resolution?
In almost all cases. Nikon embeds a full-resolution preview in NEF files. Where a camera embeds only a small preview, Invo performs a complete decode instead.
Does converting lose quality?
At 100% quality the camera's own JPEG is copied byte for byte, so no. Lower settings re-encode and trade some quality for size.
Are my NEF files uploaded?
No. Everything happens in your browser.