Convert ARW to TIFF — Sony RAW to Lossless

Convert Sony Alpha ARW RAW photos to universally compatible lossless TIFF.

155 format conversions supported Files deleted after 1 hour Free — no signup required

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HEIC, WEBP, AVIF, TIFF, BMP, SVG, GIF, PNG, JPG, PDF, CR2, NEF, ARW, DNG — up to 50MB each, or 50 from a folder

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Common
Modern
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Modern format with excellent compression. Limited browser support.

Apple's format. Excellent quality at small sizes.

Lossless format. Large files, ideal for print/archival.

256 colors max. Best for simple graphics.

Uncompressed bitmap. Very large files.

Vector trace. Best for logos and simple graphics. Not a pixel-perfect conversion.

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SSIM-optimized — finds the lowest file size at your chosen visual fidelity.

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Upscaling uses Lanczos interpolation (max 4x). Results may appear softer on images enlarged beyond 2x.

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Lossless format — files can be large

GIF is limited to 256 colors

Best for logos, icons, and line art. Photos produce stylized results.

BMP files are uncompressed and can be very large. Consider TIFF (LZW) or PNG for lossless with smaller file sizes.

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All ARW conversions → Everything you can convert to TIFF →
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ARW vs TIFF Comparison

Feature ARW TIFF
Full Name Sony Alpha RAW Tagged Image File Format
Lossy Compression ❌ ✅
Lossless Compression ✅ ✅
Transparency ❌ ✅
Animation ❌ ❌
Browser Support No browser support (requires RAW software) No browser support (desktop apps only)
Color Depth 16.7M+ (12/14-bit per channel) 16.7M+ (up to 48-bit)
Typical Use Sony Alpha mirrorless cameras (a7, a9 series) Print, archival, professional photography, scanning
Year Introduced 2006 1986

Why Convert ARW to TIFF?

TIFF is supported by every image editor and print shop. Converting ARW to TIFF lets anyone work with your Sony photos.

How to Convert ARW to TIFF

1

Upload your ARW file.

2

KoalaPic decodes Sony RAW and saves as lossless TIFF.

3

Download the TIFF.

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Quality Note

Rendered to 8-bit sRGB TIFF with zero compression loss in the container.

Frequently Asked Questions

TIFF is the interchange format print shops and archives expect, and unlike ARW it opens in essentially any imaging application without a camera-specific decoder. It stores the decoded photo losslessly, so it survives repeated editing without accumulating artefacts.

8-bit per channel. KoalaPic decodes Sony RAW to 8 bits, so the TIFF carries 16.7 million colours rather than the wider range a 14-bit ARW holds. For print delivery that is normally sufficient; for heavy tonal editing, work from the ARW in dedicated RAW software.

Large. A 24 MP Alpha frame produces roughly a 70 MB LZW-compressed TIFF, and a 61 MP a7R V frame can exceed 180 MB. TIFF stores pixels losslessly, so photographic detail compresses only modestly.

Yes. Camera body, lens, aperture, shutter speed, ISO and GPS coordinates are preserved in the TIFF by default, which is why it works as a delivery format when the technical record matters. Use the strip option to remove metadata before sending files out.
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