ARW to EXR — Format Comparison & Online Converter
Fast, instant ARW (SONY) to OPENEXR conversion. No signup required. Just drop your .arw file and get .exr in seconds.
Batch Settings
Some metadata may not survive
Your ARW file may contain EXIF, MakerNote, XMP metadata. EXR has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
About ARW (SONY) to OPENEXR Conversion
ARW (introduced 2006) and EXR (introduced 2003) are both image formats, but they differ in important ways. ARW is Sony's RAW photo format preserving the full dynamic range captured by the sensor. EXR (OpenEXR) is a high-dynamic-range format used in VFX, film, and 3D rendering pipelines.
Full Name: ARW uses Sony Alpha RAW, while EXR uses OpenEXR Image. Compression: ARW uses Lossless, while EXR uses Lossy & Lossless. Transparency: ARW uses No, while EXR uses Yes.
When you convert ARW to EXR, the goal is to convert between formats quickly. Converting ARW to EXR maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.
Your ARW file is decoded and re-encoded as EXR. The conversion involves 4 steps: (1) your arw file is uploaded and the format is validated, (2) the file content is decoded into its raw representation, (3) the data is re-encoded in exr format with optimal settings, (4) the converted file is ready for download.
CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.
This conversion is ideal when you When you specifically need a EXR file for your workflow. For the opposite direction, CocoConvert also supports EXR to ARW conversion.
How to Convert ARW (SONY) to OPENEXR
- 1
Upload .arw file
Select your ARW file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .exr
Set EXR as the output format. The converter uses optimal settings based on the ARW→EXR conversion profile.
- 3
Convert
The server-side engine decodes your ARW file and re-encodes it as EXR. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .exr file. Multiple output files can be downloaded together.
What Happens When You Convert ARW (SONY) to OPENEXR
Your ARW image is decoded into raw pixel data, then re-encoded as EXR.
Your ARW file is decoded — the compressed/stored pixel data is expanded into raw RGB pixels
Pixels are re-encoded using OpenEXR Image's lossless compression
Metadata (EXIF, ICC profiles) is transferred where EXR supports it
The EXR file is saved and ready for download
ARW (SONY) vs OPENEXR — Detailed Comparison
| Feature | .ARW | .EXR |
|---|---|---|
| Full Name | Sony Alpha RAW | OpenEXR Image |
| Compression | Lossless | Lossy & Lossless |
| Transparency | No | Yes |
| Animation | No | No |
| Color Depth | 14 bits/channel | 16 or 32 bits/channel (half/full float) |
| HDR Support | Yes | Yes |
| Typical File Size | 25–50 MB per photo | 50–500 MB |
| Platform Support | Limited | Very Limited |
| Browser Support | none | none |
| Year Created | 2006 | 2003 |
| Open Standard | No | Yes |
Should You Convert ARW (SONY) to OPENEXR?
When to Convert
- ✓When you specifically need a EXR file for your workflow
Frequently Asked Questions
What is the difference between ARW and EXR?
ARW is Sony's RAW photo format preserving the full dynamic range captured by the sensor. EXR (OpenEXR) is a high-dynamic-range format used in VFX, film, and 3D rendering pipelines. Full Name: ARW uses Sony Alpha RAW, while EXR uses OpenEXR Image. Compression: ARW uses Lossless, while EXR uses Lossy & Lossless. Transparency: ARW uses No, while EXR uses Yes.
Does ARW to EXR conversion affect quality?
Converting ARW to EXR maintains high quality with CocoConvert's optimised encoder settings.
Which format has better compression, ARW or EXR?
ARW uses lossless compression. EXR uses both compression. The better choice depends on whether you prioritize file size or quality.
How long does ARW to EXR conversion take?
Most conversions finish in seconds. Larger files or complex image content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.
Is ARW or EXR better for long-term storage?
ARW is better for archival since it's lossless.
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