Convert Sony ARW to JPG
A shoot from an A7 series body is often 40 MB a frame. None of it has to be uploaded anywhere.
Options
All processing runs in your browser. No file leaves this device.
ARW is Sony's Alpha Raw format, used across the A7, A9, A1, A6000 and FX lines, as well as the RX compacts. Sony has offered several storage options over the years: an older compressed mode, uncompressed, and — from the A7 IV onward — lossless compressed in several sizes. All carry the .arw extension.
The older compressed ARW mode is worth knowing about if you shoot high-contrast scenes. It uses an 11-bit plus 7-bit delta scheme that can produce visible posterisation along very abrupt brightness transitions, most often seen as banding at the edge of a bright light source against a dark background. This is baked in at capture; no converter can undo it. If you have seen this artifact and disliked it, the uncompressed or lossless compressed setting in the camera is the fix.
Sony's older .sr2 and .srf formats from early Alpha and DSC bodies are accepted here as well.
What happens on conversion: LibRaw demosaics the sensor mosaic with adaptive homogeneity-directed interpolation, applies the white balance your camera recorded at capture, and hands back 16-bit linear data. That linear buffer is then encoded to sRGB — the gamma encoding every display expects, applied correctly rather than approximated. Because the whole path stays in floating point until the final encode, there is no intermediate 8-bit step to quantise away highlight detail.
Your files never leave this device. The decoder runs as WebAssembly inside this page, so there is no upload step and no server that could retain a copy. With RAW this is not just a privacy point — it is why the tool is usable at all, since uploading a card full of 30 MB files over a home connection would take longer than the shoot did.
Common questions
- Compressed, uncompressed or lossless compressed — do they all work?
- Yes, all of Sony's ARW storage modes decode here. They differ in file size and, for the older lossy compressed mode, in how they handle extreme brightness transitions.
- I see banding around bright lights in my ARW files. Can this fix it?
- No. That artifact comes from Sony's older lossy compression scheme and is present in the file as captured — the information is already gone. Switching the camera to uncompressed or lossless compressed prevents it on future shoots.
- Are my ARW files uploaded to a server?
- No. Decoding and encoding both run in your browser via WebAssembly. Nothing is transmitted. You can verify it in the Network tab of your devtools during a batch, or by disconnecting from the internet once the page has loaded — the tool keeps working.
- How many files can I convert at once?
- There is no limit in the tool. RAW files are large, and each one is decoded to a full floating-point buffer, so memory is the real constraint. Batches of a few dozen are comfortable on a typical laptop; for a whole card, work through it in groups rather than dropping a thousand files at once.
This converter is part of a full editing pipeline — tone, colour, lens correction and batch export all run the same way, without uploading.
Open the full pipeline