NEF to JPG — turn Nikon RAW files into shareable JPGs, right in your browser

NEF stands for Nikon Electronic Format, the RAW file your Nikon writes when you shoot in RAW mode. Every Nikon DSLR and Z-series mirrorless body speaks it — the D-series like the D750, D850, and D3500, and the mirrorless Z6, Z7, and Zf. Instead of a finished picture, a NEF holds the sensor's untouched readout plus the settings your camera recorded: as-shot white balance, exposure, and Picture Control. That is why photographers love it — a NEF keeps the full latitude to push shadows, recover highlights, and re-grade later. It is also why the file is large and stubborn: pull a card of NEFs into a folder and each one can run 20 to 50 MB.

The trouble starts the moment you try to use a NEF anywhere outside a camera-aware app. Your phone gallery shows a blank thumbnail or nothing at all. A client's Windows PC double-clicks it and gets an error. Most upload forms, portfolio sites, and chat apps reject the extension outright. To even see a NEF properly you need Nikon NX Studio, Capture NX, or a RAW editor like Lightroom — and the person you are sending it to almost certainly has none of those installed. A JPG solves all of it at once: it is the format every device, browser, and program already understands.

This is where AnyResizer fits. Drop your NEF files and each one is decoded and re-encoded into JPG entirely inside your browser through WebAssembly — the same ImageMagick engine, running locally. A single NEF saves straight to your device as a JPG; a batch comes back as one ZIP with clean .jpg names. Nothing is sent to a server, and camera metadata including GPS is stripped by default so your JPGs stay lean and private. One honest note up front: this is a fast, faithful conversion, not a full Nikon RAW development — more on exactly what that means below.