Convert CR2, CR3, NEF, ARW, DNG, RAF, ORF, RW2, PEF, SRW and more to JPG or WebP instantly. Powered by libraw compiled to WebAssembly, so decoding runs entirely in your browser · no upload, no signup, no file size cap on our side.
100% in your browser. Your RAW files never leave your device. No upload, no signup.
Drop RAW files or click to browse
CR2, CR3, NEF, ARW, DNG, RAF, ORF, RW2, PEF, SRW and more
Decoded entirely in your browser · no server upload · no file size limits from our side
Free: up to 20 files · Pro: 500
Large RAW files (20-100+ MB) may take 5-30 seconds per file depending on your device.
Drop your RAW files
Drag and drop CR2, NEF, ARW, DNG or any supported RAW file onto the converter, or click to browse. Batch convert up to 20 files at once on the free plan.
Choose output format and quality
Select JPG for universal compatibility or WebP for smaller file sizes. Adjust the quality slider from 60 to 100 · 90 is the default and preserves all visible detail.
Download your converted images
Download each JPG or WebP individually with one click, or download the full batch as a ZIP archive (Pro). Files are saved directly from your browser.
After converting RAW to JPG, compress your images further to cut file size by 50-80% without visible quality loss. Compress images
Your RAW files never leave your device. All decoding happens inside the browser using a compiled C library (libraw) via WebAssembly. Not even SammaPix can see your photos.
Convert up to 20 RAW files at once on the free plan, up to 500 on Pro. Files are processed sequentially to keep memory usage manageable for large sensor cameras.
Choose JPG for maximum compatibility or WebP for smaller files. Adjustable quality from 60 to 100. Default is 90, which preserves all visible detail from the RAW decode.
The converter is powered by libraw, the same C library used by Darktable, RawTherapee, and digiKam. It supports 1,000+ camera models across all major brands. Below is a list of the primary format extensions covered.
A RAW file is the unprocessed data captured directly by your camera's image sensor. Unlike JPG, which applies in-camera sharpening, noise reduction, and color processing before saving, a RAW file stores the raw sensor readings. This gives photographers maximum flexibility for post-processing: you can change exposure, white balance, highlights, and shadows non-destructively in software like Lightroom, Darktable, or Capture One.
Each camera manufacturer uses a proprietary RAW format: Canon uses CR2 and CR3, Nikon uses NEF, Sony uses ARW, Fujifilm uses RAF, and so on. Adobe's DNG (Digital Negative) is an open standard that many cameras and apps now use directly. Because RAW formats are proprietary, not all software can open every format, which is where a universal RAW converter becomes useful.
SammaPix uses libraw-wasm, the official WebAssembly build of libraw. When you drop a RAW file, the browser reads it into memory, the WASM module demosaics the Bayer sensor data into an RGB image, applies the camera white balance metadata, and hands the pixel data to a Canvas element. The Canvas then encodes the result as JPG or WebP and offers it for download, entirely without any network request.
This approach is fundamentally more private than any server-based converter. Online tools that convert RAW by uploading your file cannot guarantee what happens to that data. SammaPix's browser-based approach makes that question irrelevant: your photos stay on your device at all times.
Choose JPG if you need the widest compatibility: every device, browser, operating system, and application can open a JPG. Choose WebP if you are publishing images to a website or web app, as WebP files are typically 25-40% smaller than equivalent JPGs at the same visual quality. All modern browsers support WebP, and it is the recommended format for web performance. If you are printing or sharing with clients, JPG is the safer choice.
SammaPix supports CR2, CR3 (Canon), NEF (Nikon), ARW (Sony), DNG (Adobe, Leica, Google Pixel), RAF (Fujifilm), ORF (Olympus), RW2 (Panasonic), PEF (Pentax), SRW (Samsung), 3FR (Hasselblad), MRW (Minolta), X3F (Sigma) and generic .RAW files. The underlying decoder is libraw, one of the most widely used RAW parsing libraries, covering 1,000+ camera models.
Yes. The tool uses WebAssembly (WASM) to run libraw, a compiled C library, directly inside your browser. Your RAW file is read from disk into browser memory, decoded there, and the resulting JPG or WebP is saved back to your disk. No bytes travel over the network. You can even disconnect from the internet after the page loads and the tool still works.
Converting from RAW to JPG always applies some lossy compression, but at quality 90 (the default) the result is visually indistinguishable from a high-quality export. The RAW decode uses the camera white balance metadata and 8-bit output, which matches what most RAW converters produce for sharing. For archival work you may prefer lossless formats, but for sharing, printing, or web use, JPG at 90 is excellent.
There is no file size limit imposed by SammaPix because nothing is uploaded. The practical limit is your device RAM. A 45 MP RAW file (e.g. Sony A7R V .ARW) expands to roughly 130 MB of uncompressed RGB data in memory during decode. Modern laptops handle this fine. On mobile devices with limited RAM, very large RAW files may cause the browser tab to crash · a desktop or laptop is recommended for files above 30 MB.
Lightroom and Capture One are professional tools with full color grading pipelines, lens corrections, and non-destructive editing. SammaPix RAW Converter is a quick utility: drop a file, get a JPG in seconds, no software to install, no subscription required. It is ideal for sharing a few shots quickly, extracting frames for web use, or converting files on a machine where Lightroom is not installed.
The free plan converts up to 20 RAW files per session and lets you download each output individually. SammaPix Pro (starting at $9/mo) raises the batch limit to 500 files and adds ZIP batch download. There is also a Day Pass ($2.99) for one-time large jobs.