ARW to JPG, PNG, WebP Converter
Convert Sony ARW files to JPG, PNG, or WEBP. Uses binary extraction for instant JPGs and client-side canvas rendering for other formats.
Drag & Drop ARW Files
Client-Side Extraction & Conversion
About
This tool expands on the high-speed extraction technology by adding support for PNG and WEBP formats. While Sony cameras natively embed a compressed JPG inside every Raw (.ARW) file, they do not store PNGs or WEBPs. To achieve this, this converter employs a two-stage process directly in your browser.
First, it uses Binary Parsing to slice the embedded image data from the ARW header. If you select JPG, the process ends here (instant). If you select PNG or WEBP, the tool loads that data into an invisible HTML5 Canvas and re-encodes the pixel stream. This allows you to generate lossless PNGs or modern, high-efficiency WEBP files without ever uploading your data to a server.
This workflow is ideal for different use cases: JPG for proofing, PNG for maximum compatibility with graphic design tools, and WEBP for website optimization.
Formulas
The conversion efficiency depends on the entropy of the image data. PNG uses DEFLATE compression (Lossless), while WEBP uses predictive coding.
For PNG conversion, the browser must map standard 8-bit channels to the portable network graphics structure:
Reference Data
| Format | Generation Method | Speed | Transparency | Typical Size |
|---|---|---|---|---|
| JPG | Direct Extraction | ~0.01s (Instant) | FALSE | 5 - 8 MB |
| WEBP | Canvas Re-encoding | ~0.5s (Fast) | TRUE (Alpha) | 3 - 6 MB |
| PNG | Canvas Re-encoding | ~1.5s (Slower) | TRUE (Alpha) | 20 - 45 MB |