How to Convert ARW to HDR — Quick & Free
Fast, instant ARW (SONY) to HDR conversion. No signup required. Just drop your .arw file and get .hdr in seconds.
Batch Settings
Some metadata may not survive
Your ARW file may contain EXIF, MakerNote, XMP metadata. HDR has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
デジタルカメラで捉えた大切な瞬間を、さらに豊かな表現力で輝かせたいとお考えですか？ソニー製カメラで撮影されたARWファイルは、その高い情報量ゆえに、編集の自由度という点で非常に魅力的です。しかし、一般的な表示環境やウェブ上での共有を考えると、HDR（ハイダイナミックレンジ）形式への変換が、その真価を発揮する鍵となります。特に、明暗差の激しい風景や、細部までこだわりたい作品においては、HDR変換によって階調豊かな表現が可能となり、見る人の心に深く響くことでしょう。このページでは、ARWファイルをHDRへとスムーズに変換し、あなたの作品が持つ潜在能力を最大限に引き出すお手伝いをいたします。
- アニメの背景美術制作
- ビジネスプレゼンテーション資料
- 写真集・ポートフォリオ作成
日本のコンテンツ制作では、特にアニメやゲーム分野でHDR表現の需要が高く、ARWのような高情報量フォーマットからHDRへの変換は、作品の質を大きく左右する重要な工程です。
About ARW (SONY) to HDR Conversion
Short answer: yes, you can convert ARW to HDR online for free, and quality is well preserved with the right settings. Just upload your .arw file to CocoConvert, pick HDR as the output, and click Convert. The whole process takes seconds.
Now for the details. ARW is Sony's RAW photo format preserving the full dynamic range captured by the sensor. HDR (Radiance) is a high-dynamic-range image format used in lighting and rendering. Converting between these two formats lets you convert between formats quickly.
Full Name: ARW uses Sony Alpha RAW, while HDR uses Radiance HDR Image. Compression: ARW uses Lossless, while HDR uses Lossless. Transparency: ARW uses No, while HDR uses No.
Your ARW file is decoded and re-encoded as HDR. Converting ARW to HDR maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert runs entirely online — no software to install, no account to create. Your files are encrypted during upload (TLS), processed on isolated servers in Germany, and permanently deleted after 24 hours. It works in Chrome, Safari, Firefox, Edge, and all mobile browsers.
Need to convert more than one file? Free users can do 5 per hour. Pro gets 100 per hour with files up to 5 GB each.
How to Convert ARW (SONY) to HDR
- 1
1. Upload ARW
Drop your .arw file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.
- 2
2. Select HDR
Choose .hdr from the output dropdown. Settings are pre-configured for best results.
- 3
3. Convert
One click. The server handles all the heavy lifting using FFmpeg and Sharp.
- 4
4. Download
Your .hdr file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert ARW (SONY) to HDR
Your ARW image is decoded into raw pixel data, then re-encoded as HDR. No quality loss — pixel data is preserved exactly.
Your ARW file is decoded — the compressed/stored pixel data is expanded into raw RGB pixels
Pixels are re-encoded using Radiance HDR Image's lossless compression
Metadata (EXIF, ICC profiles) is transferred where HDR supports it
The HDR file is saved and ready for download
ARW (SONY) vs HDR — Detailed Comparison
| Feature | .ARW | .HDR |
|---|---|---|
| Full Name | Sony Alpha RAW | Radiance HDR Image |
| Compression | Lossless | Lossless |
| Transparency | No | No |
| Animation | No | No |
| Color Depth | 14 bits/channel | 32-bit float (RGBE encoding) |
| HDR Support | Yes | Yes |
| Typical File Size | 25–50 MB per photo | 5–50 MB |
| Platform Support | Limited | Very Limited |
| Browser Support | none | none |
| Year Created | 2006 | 1985 |
| Open Standard | No | Yes |
Should You Convert ARW (SONY) to HDR?
When to Convert
- ✓When you specifically need a HDR file for your workflow
Frequently Asked Questions
Is ARW to HDR conversion free?
Yes. CocoConvert offers free ARW to HDR conversion with generous daily limits — 25 minutes of processing time and up to 5 files per hour (250 MB each). Pro plans remove these limits.
How fast is ARW to HDR conversion?
Most files convert in 2–10 seconds depending on size. Large image files may take 30 seconds. Batch jobs process in parallel for maximum speed.
What happens to my files after conversion?
Your uploaded ARW file and the converted HDR file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting ARW to HDR lose quality?
Converting ARW to HDR maintains high quality with CocoConvert's optimised encoder settings.
Can I convert HDR back to ARW?
Yes, CocoConvert supports HDR to ARW conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
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