Compress RAW Images

No. RAW is unprocessed camera sensor data, not a delivery format you can simply shrink. To make it smaller it must be decoded and re-encoded into a standard format like JPG or PNG. That's why this tool always produces a copy in a normal format. Your original RAW stays as it was, and you should keep it as your editing master.

Never. The compressed file is a delivery copy, not a replacement for your master. The original RAW holds all the exposure and colour latitude that lets you re-edit later. Always keep your RAW files safely stored — treat the compressed JPG or PNG purely as something to share, proof, or preview.

Typically 80 to 95 percent smaller — the largest reduction of any source in our toolkit. A 40 to 60 MB RAW often becomes a 2 to 5 MB JPG that looks the same on screen. The exact figure depends on the output format and quality you pick. The live preview shows your before-and-after size before you download.

Common formats including Canon CR2, Nikon NEF, Sony ARW, and the open DNG standard are supported. Because RAW formats vary by manufacturer and camera model, browser decoding handles some better than others. DNG is the most broadly compatible. If a file won't process cleanly, exporting a DNG or high-quality JPG from your editor first is a reliable fallback.

Yes, in the copy. A RAW file holds wide exposure and white-balance headroom that lets you recover highlights and lift shadows. The compressed JPG or PNG bakes in those settings and discards that latitude. That's why you do your editing on the RAW and only compress the finished result — and why the original must be kept.

For photographs, compressed JPG gives the smallest delivery files and is what most clients and platforms expect. Choose PNG only if you need a lossless copy, for example for graphics or when you'll do further processing. For the very smallest web files with good quality, converting to WebP is also worth considering.

No. All processing happens entirely inside your own browser. Your RAW files are never uploaded, transmitted, or stored anywhere, which matters for unreleased client work. There are no accounts, no tracking, and no server involved. Once the page has loaded you can even disconnect from the internet and the tool keeps working.

For everyday prints, a maximum-quality JPG export works well. For large or critical prints, it's best to export from the RAW at full quality in your editing software, since the RAW's complete data gives the printer the most to work with. Use this tool mainly for screen delivery, proofs, and web rather than fine-art printing.

Yes. You can select multiple RAW files and process them together as a batch — useful for turning a whole shoot into delivery copies at once. Each file is handled locally in your browser, and you can download them individually or as a set. Because RAW files are large, available device memory is the practical limit.

RAW files need special software or codecs to view, since they're sensor data rather than ready-made images, and support varies by camera. That's exactly why exporting a standard JPG or PNG copy is so useful — the compressed delivery file opens on any device, while you keep the RAW for editing in your photo software.

Yes, though RAW files are very large, so processing them on a phone depends on available memory. The tool is fully responsive and works in mobile browsers, but for big batches of RAW files a desktop will generally be faster and more comfortable. Single files and previews handle fine on most modern phones.