ARW to AVIF Converter — Free, Online, No Upload

Sony ARW is a RAW camera format that stores unprocessed sensor data at maximum quality — it's the format serious photographers use to preserve everything the camera captured before any in-camera processing occurs. But ARW files are 20–80 MB each, unrecognizable to most software, and completely impractical for web delivery or casual sharing.

AVIF is the most efficient modern format for delivering high-quality images at small file sizes. Converting ARW to AVIF turns a 60 MB RAW file into a full-size AVIF of a few megabytes. AVIF can store HDR and wide colour, but this converter develops the RAW to 8-bit sRGB, so the AVIF is standard range. All modern browsers support AVIF, and platforms like Cloudflare and Fastly serve it by default.

Browsers can't read RAW files, so the converter develops the ARW's sensor data itself, at full size and with the camera's white balance, using LibRaw, an open-source RAW decoder that runs in your browser, and encodes it as AVIF at quality 85. For personal sharing, portfolio web pages, and social media uploads, that is usually plenty. For professional deliverables where color accuracy matters, process in your RAW editor first and then export to AVIF.

Typical sizes: ARW 20–30 MB (24MP Sony sensor); AVIF 0.8–2 MB (12MP photo).

On the free tier, AVIF output has a repeating formatdrop.com watermark; Pro output doesn't.

AVIF output is encoded at quality 85 — a small file with no visible difference for most photos.