Will transparency survive the conversion?

RW2 is unprocessed sensor data straight off the camera — 20-100 MB per frame, with no white balance, tone curve or sharpening baked in. Developing a RAW into WebP produces a finished, viewable image at a fraction of a percent of the original size, with white balance and tone mapping applied. It is the fastest route from a memory card to something you can actually put on a web page.

WebP is the default currency of fast web pages — smaller than JPEG at the same visual quality, smaller than PNG while keeping transparency, and supported by every browser in use. In practice that means a page that loads faster on mobile, a better Largest Contentful Paint score, and less CDN bandwidth — for the same picture. RW2 files are 20-100 MB per frame — hundreds of times a WebP, so this is usually the single biggest weight saving available on a page built from them.

Keep the RAW originals. They stay the editable master with full highlight and shadow recovery latitude that no WebP export can give back. WebP tops out at 16383 pixels on either edge, so anything larger is scaled to fit; for the vast majority of web work that ceiling is nowhere near a constraint.

Reasons to convert RW2 to WebP usually come down to compatibility, file-size, or specific feature requirements. Common situations:

• An app or platform only accepts WebP uploads.
• You need a feature unique to WebP (e.g. transparency, vector scaling, animation, multi-page pages, etc.) that RW2 doesn't provide.
• You're optimising file size — modern formats often produce smaller files than the older format you started with.
• You need a single archival format across a project so files behave consistently in the same viewer.

1. Open the RW2 → WebP tool on webp.now.
2. Drag your RW2 file onto the drop zone, or click Select files. You can drop a whole folder of files at once.
3. The output is fixed to WebP. If the format supports extra options (page size, transparency background, quality, EXIF stripping), tweak them in the right-hand panel.
4. Click Convert. The job runs on our server and finishes in a few seconds for typical photos.
5. Download the result. Files stay in storage for 24 hours and are then permanently deleted.

The entire flow is free for the first 10 jobs per day with no signup required. A free account doubles that quota; a premium plan removes the limit entirely.

• Quality 80-85 is the sweet spot for photographs — visually indistinguishable from the original at normal viewing sizes, and roughly a third the weight of the equivalent JPG.
• Use lossless WebP for logos, icons, screenshots and line art. Lossy compression puts visible fuzz around hard edges and text.
• Set white balance explicitly rather than accepting the camera default — RAW carries no baked-in rendering, so this is the single setting that most changes how the WebP looks.
• Strip metadata for web delivery. EXIF blocks can add tens of kilobytes to a file nobody will ever read them from.
• Serve WebP through a element with a JPG fallback if you still support very old browsers or need images to survive email clients.