100% Free No Upload Bulk Conversion RAW Support

Bulk ARW to HEIF Converter — Free, Unlimited

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

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

Why convert ARW to HEIF?

Think of HEIF as the format ARW files graduate to once they need Apple devices — efficient storage. Converting ARW RAW images to HEIF applies essential post-processing: white balance, demosaicing, and tone mapping. The result is a standard image ready for printing or further editing in any software. It's a minor step in your workflow with a noticeably smoother outcome.

JPEG compression introduces minor quality loss — set quality to 90%+ to minimize
RAW conversion may take longer — files are processed via WebAssembly in your browser

Technical comparison: ARW vs HEIF

PropertyARWHEIF
Full nameSony Alpha RAWHigh Efficiency Image Format
Compression Lossless RAW Lossy
Color depth14-bit per channel10-bit HDR
Transparency No Yes
Web support No No
Developed bySony (2006)MPEG Group (2015)
Max colors4.4T1.07B
MIME typeimage/x-sony-arwimage/heif
Category RAW format Raster image
Year gap 9 years apart in technical development
Best for Sony Alpha mirrorless photography Apple devices — efficient storage
Estimated size change Typically 92%-97% smaller

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 HEIF files are bundled into a single ZIP. One click, everything saved.

Popular use cases for ARW → HEIF

Freelancers delivering final assets to clients in the HEIF format they requested

Migrating an old ARW image archive to HEIF before a platform sunsets support

Preparing HEIF thumbnails from ARW originals for a content management system

Converting ARW exports from design software into HEIF for immediate publishing

💡 Pro tips

  • Set quality to 85-92% for the best balance between file size and visual quality
  • 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

Frequently Asked Questions

HEIF uses lossy compression. If lossy, at 85-92% quality the loss is imperceptible. If lossless, every pixel is preserved.
No artificial limit. Browser memory is the only constraint. Files up to 500 MB work well.
Yes. The bulk converter processes all selected files sequentially. Hundreds of files possible.
Yes. Everything happens locally in your browser via WebAssembly. Files never uploaded.
Application offline!