Lossless High Compression
Our advanced algorithm compresses DNG by 60%–85% with virtually no visible quality loss, saving storage and bandwidth costs.
Reduce DNG camera RAW file size online for free. We re-encode to a smaller lossless DNG (still a real, editable RAW); if your camera can't be converted losslessly, we export a high-quality JPEG. Files auto-deleted in 1 hour, no sign-up.
We tested PicEditLab on genuine RAW files from these cameras — each is losslessly re-encoded into a smaller DNG (a real, editable RAW). Other cameras are supported too and exported as a high-quality JPEG.
No technical knowledge needed. Free, fast, and available on any device.
We go the extra mile on every detail to deliver the best compression experience.
RAW compression is different from photo compression. The sensor data inside a DNG can't simply be recompressed in place. Instead our tool re-encodes it into a DNG — Adobe's open RAW standard — using modern lossless compression (LJPEG-92). This keeps 100% of the original sensor data and full editing latitude while making the file smaller; the result is a real RAW you can open in Lightroom, Camera Raw, Capture One, darktable and more. For camera models we can't convert losslessly, we decode the RAW and export a high-quality JPEG — far smaller, but no longer a RAW. We always keep whichever result is smaller and tell you which format you received.
A DNG file is a camera RAW format that stores unprocessed sensor data for maximum editing latitude. Some cameras store that data uncompressed or only lightly compressed, which is why DNG files can be huge. The safe way to shrink one is to re-encode the same sensor data with modern lossless compression into a DNG — Adobe's open RAW standard — so you keep every bit of image data and full editing latitude in a smaller file. When a file can't be converted losslessly, exporting a high-quality JPEG is the practical way to get a much smaller image.
As web content becomes richer, image file sizes have an increasingly significant impact on page performance. Oversized, unoptimized images slow down page loading, directly affecting search engine rankings (SEO) and user retention.
Using PicEditLabs online DNG compressor is a 3-step process: (1) Upload your DNG file (drag & drop supported); (2) Wait for the system to complete lossless compression automatically; (3) Click download. No software to install, no account to create, completely free, works on any device.