100% Free No Upload Bulk Conversion RAW Support

Bulk ARW to BMP Converter — Free, Unlimited

Convert multiple ARW files to BMP instantly — all in your browser. No file limits, no watermarks, and completely private.

ARW BMP  ·  ZIP
Bulk ARW → BMP Converter
Select files, convert, download ZIP — all locally
RAW conversion may take longer — files are processed via WebAssembly in your browser

Drop ARW files here or click to browse

Supports batch selection — convert hundreds of files

ARW → BMP ZIP
0 files
Converting 0 / 0
✓ Conversion completed! All files converted successfully. Click Download ZIP to save them.

Why convert ARW to BMP?

ARW served its purpose well, but modern workflows increasingly favor BMP for Uncompressed images on Windows. The shift is worth making. This conversion processes your files entirely in your browser using WebAssembly – no upload, no server, no privacy concerns. Perfect for sensitive or large batches. In practice, teams that make this switch rarely go back to ARW for this use case.

RAW conversion may take longer — files are processed via WebAssembly in your browser

Technical comparison: ARW vs BMP

PropertyARWBMP
Full nameSony Alpha RAWBitmap Image File
Compression Lossless RAW Uncompressed
Color depth14-bit per channel24-bit
Transparency No No
Web support No No
Developed bySony (2006)Microsoft (1988)
Max colors4.4T16.7M
MIME typeimage/x-sony-arwimage/bmp
Category RAW format Raster image
Year gap 18 years apart in technical development
Best for Sony Alpha mirrorless photography Uncompressed images on Windows

How to use — 3 simple steps

1
Select your ARW files
Drag & drop or click to choose multiple ARW images. No file size restrictions.
2
Start the conversion
Click "Convert to :to" — your files are processed locally using WebAssembly. No upload, no waiting.
3
Download ZIP archive
All converted BMP files are bundled into a single ZIP. One click, everything saved.

Popular use cases for ARW → BMP

Make your ARW images viewable on any device – convert to BMP

Stop dealing with 'unsupported format' errors – use BMP instead of ARW

Batch rename and convert your ARW collection to BMP for a unified library

Improve your website's Google PageSpeed score by serving BMP images

💡 Pro tips

  • RAW files process directly in your browser — no software installation needed
  • Bulk convert your entire RAW session at once — drop all files together
  • Use the ZIP download to get all converted files in a single click
  • All processing is private — files are never uploaded to any server

Frequently Asked Questions

No watermarks, no ads, no branding. Completely clean output.
Typically 1-2 seconds per 5 MB image. Total ~2-3 minutes for 100 files.
Yes. Works on any device with a modern browser (Chrome, Safari, Firefox).
The converter will skip unreadable files and show an error. Only valid ARW images are processed.
Application offline!