Convert ARW to WebP
Free, instant and private — your ARW files are converted right in your browser and never uploaded to a server.
How to convert ARW to WebP
- Step 01
Add your ARW files
Drop them into the box above or click to browse. You can add several files at once.
- Step 02
Conversion starts instantly
It runs in your browser using its built-in image engine — no upload, no queue, no waiting.
- Step 03
Download your WebP files
Save each file individually or grab them all at once. Done.
Why convert ARW to WebP?
Converting ARW to WebP runs the full RAW pipeline and re-encodes the result with modern compression — typically 25–35% smaller than an equivalent JPG at the same visual quality. Ideal when a Sony RAW photo is headed straight for a website.
ARW vs WebP at a glance
ARW is Sony's RAW format — every photographic detail the sensor captured, before any in-camera processing, editable but unreadable by most everyday software. WebP is Google's web format — roughly 30% smaller than JPG at the same quality, served by most large websites.
| Property | ARW | WebP |
|---|---|---|
| Extension | .arw | .webp |
| Full name | Sony Alpha RAW | WebP (Web Picture format) |
| First released | 2005 | 2010 |
| Developed by | Sony | |
| Compression | Lossless | Lossy |
| Transparency | No | Yes |
| Animation | No | Yes |
| Best for | unprocessed camera sensor data from Sony Alpha and mirrorless cameras | web images — smaller files at the same visual quality |
ARW to WebP — frequently asked questions
Is this ARW to WebP converter really free?
Yes — completely free, with no sign-up, no watermarks and no daily limits.
Are my ARW files uploaded to a server?
No. The conversion happens entirely on your device using your browser's built-in image engine. Your ARW files never leave your computer or phone — which is also why the conversion is nearly instant.
Will I lose quality converting to WebP?
WebP uses lossy compression, so the image is re-encoded at high quality (92%). For photos the difference is practically invisible; for text-heavy graphics or logos, a lossless format like PNG preserves sharp edges better.
Why convert ARW to WebP instead of JPG?
WebP produces smaller files than JPG at the same quality, which helps if the photo is destined for a website rather than printing or archival editing.
Is the conversion private?
Yes — your ARW is decoded and converted entirely inside your browser via a WebAssembly build of LibRaw; nothing is uploaded to a server.