Why you can't just open an ARW
ARW is the RAW format of Sony cameras, including the Alpha mirrorless line that many photographers and video creators use. It's great for editing, because it keeps the sensor data instead of a finished picture. It's not great for sharing: phones, browsers, messaging apps, print kiosks and many upload forms don't understand it, and even some computers show a blank icon instead of a thumbnail.
Creators who shoot RAW for quality often run into this when they just want to post a frame, send a preview to a client or drop a photo into a presentation.
What ConvertirDocs does with your ARW files
Sony cameras save a JPEG preview inside each ARW file, already processed with the creative look or picture profile settings of the camera. ConvertirDocs extracts that preview and gives it to you as a JPG. It's fast, and the result looks like what you saw on the camera screen.
What it doesn't do is develop the RAW. There are no sliders for exposure, shadows or white balance, and the extra dynamic range of the RAW isn't used. For that kind of editing, keep using Sony's Imaging Edge or another RAW editor. The JPG resolution depends on the preview stored by your model: often full size, sometimes smaller.
Situations where it saves time
A real estate or product shoot where the client wants to see the selection today. A travel day when you want to post a few photos from a laptop that has no editing software. A family event where everyone asks for the pictures. A blog post or a school assignment that just needs a JPG. In each case, a quick conversion of the camera's preview is all you need.
Your ARW originals are never modified. You only download JPG copies, so you can still edit the RAW files later.
No uploads, no account
Sony RAW files are big, and uploading a full card to a website can take ages. ConvertirDocs reads them in your browser, so nothing is sent anywhere and the speed depends on your device. There's no sign-up, no watermark and no limit on the number of files. Convert a whole shoot and download one ZIP.
After converting
Once you have the JPG files you can keep working without selecting them again. “Compress image” brings them under a size limit in KB for email or a portal, “Resize image” sets exact pixel dimensions for a website or a marketplace listing, and “JPG to PDF” combines a selection into one document, which is handy for sending a client a simple proof sheet.
If your Sony is set to RAW+JPEG, the card already has JPG copies. This page is meant for the times you shot RAW only, or deleted the JPG files to save space.