ARW vs HEIC — Comparison & Free Converter
Fast, instant ARW (SONY) to HEIC conversion. No signup required. Just drop your .arw file and get .heic in seconds.
Batch Settings
Quality reduction ahead
ARW is lossless, meaning every bit of data is preserved. HEIC uses lossy compression — some data is permanently discarded to reduce file size. At high quality settings the difference is usually imperceptible, but the original data cannot be recovered.
Some metadata may not survive
Your ARW file may contain MakerNote metadata. HEIC has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
Color depth reduction: 14-bit → 10-bit
ARW stores up to 14 bits per channel, but HEIC supports only 10 bits. You may notice banding in smooth gradients (like sky or skin tones) where subtle color transitions are lost.
What compression artifacts to expect
HEIC lossy compression can produce blurring and occasional color shifts at high compression. At the high quality settings CocoConvert uses by default, these are usually invisible to the eye. Lower quality settings trade visual fidelity for smaller file sizes.
ソニー製カメラで撮影されたARW形式の美しいRAW画像は、その豊かな情報量で多くの写真愛好家に選ばれています。しかし、これらの画像をiPhoneやiPadで手軽に閲覧・共有しようとすると、互換性の問題に直面することが少なくありません。特に、ストレージ容量を効率的に使いたい、あるいはApple製品との連携をスムーズにしたいとお考えの方にとって、ARWをHEIC形式に変換することは非常に有効な解決策となります。HEICは、JPEGの約半分のファイルサイズで同等以上の画質を保ちつつ、Appleのエコシステムに最適化された高効率な画像フォーマットです。この変換を行うことで、大切な写真の品質を損なうことなく、より多くの画像をデバイスに保存し、快適なデジタルライフを送ることが可能になります。当社の変換ツールは、お客様の貴重なARWファイルを、手間なく、そして安全にHEICへと変換いたします。
- 漫画原稿のデジタル入稿
- ビジネス文書のビジュアル資料
- 縦書きレイアウトのデザイン確認
日本のビジネスシーンやクリエイティブ業界では、データの軽量化と高い互換性が同時に求められるため、HEIC形式への変換は特に重宝されます。また、フォントの美しさや細部の表現にこだわる傾向が強いため、画質劣化の少ないHEICはARWの品質を保つ上で理想的です。
About ARW (SONY) to HEIC Conversion
ARW or HEIC — which format should you use? The answer depends on your needs. Here's a quick breakdown.
ARW is Sony's RAW photo format preserving the full dynamic range captured by the sensor. It has limited platform support. HEIC (High Efficiency Image Container) is Apple's format for iPhone photos, offering twice the compression of JPEG. It has limited platform support.
Full Name: ARW uses Sony Alpha RAW, while HEIC uses High Efficiency Image Container. Compression: ARW uses Lossless, while HEIC uses Lossy. Transparency: ARW uses No, while HEIC uses No.
So when should you convert ARW to HEIC? This conversion is ideal when you Your ARW file is too large for email attachments or upload limits, or when you You want to reduce storage usage without noticeably affecting quality. This conversion helps you reduce file size without visible quality loss.
HEIC lossy compression can produce blurring and occasional color shifts at high compression. At the high quality settings CocoConvert uses by default, these are usually invisible to the eye. Lower quality settings trade visual fidelity for smaller file sizes.
If you've decided HEIC is the right choice, CocoConvert makes the conversion effortless. Upload your .arw file, pick HEIC, and click Convert — done in seconds. The converter runs on secure servers in Germany, powered by FFmpeg, Sharp, and qpdf. Files are encrypted via TLS and erased within 24 hours.
Free tier: 5 files/hour, 250 MB each. Pro: 100 files/hour, 5 GB each. Works in every modern browser on desktop and mobile.
How to Convert ARW (SONY) to HEIC
- 1
Choose your ARW file
Upload your .arw file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to HEIC
Select .heic from the output options. The converter applies optimal quality settings automatically.
- 3
Run the conversion
Click Convert. Server-side processing means your device stays fast — even for large image files.
- 4
Get your HEIC file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert ARW (SONY) to HEIC
Your ARW image is decoded into raw pixel data, then re-encoded as HEIC. Some quality is permanently lost during compression. CocoConvert uses high-quality defaults to minimize this.
Your ARW file is decoded — the compressed/stored pixel data is expanded into raw RGB pixels
Pixels are re-encoded using High Efficiency Image Container's lossy compression algorithm
Metadata (EXIF, ICC profiles) is transferred where HEIC supports it
The HEIC file is saved and ready for download
ARW (SONY) vs HEIC — Detailed Comparison
| Feature | .ARW | .HEIC |
|---|---|---|
| Full Name | Sony Alpha RAW | High Efficiency Image Container |
| Compression | Lossless | Lossy |
| Transparency | No | No |
| Animation | No | Yes |
| Color Depth | 14 bits/channel | 10 bits/channel |
| HDR Support | Yes | Yes |
| Typical File Size | 25–50 MB per photo | 1–3 MB per photo (half of JPEG) |
| Platform Support | Limited | Limited |
| Browser Support | none | Limited |
| Year Created | 2006 | 2015 |
| Open Standard | No | No |
Should You Convert ARW (SONY) to HEIC?
When to Convert
- ✓Your ARW file is too large for email attachments or upload limits
- ✓You want to reduce storage usage without noticeably affecting quality
Frequently Asked Questions
Should I use ARW or HEIC?
It depends on your goal. ARW preserves full quality. HEIC offers smaller files via lossy compression. Choose based on whether file size or quality matters more for your use case.
Is HEIC higher quality than ARW?
Not necessarily. HEIC lossy compression can produce blurring and occasional color shifts at high compression. At the high quality settings CocoConvert uses by default, these are usually invisible to the eye. Lower quality settings trade visual fidelity for smaller file sizes. Quality depends on the compression type and settings, not just the format name.
Can I convert ARW to HEIC on Mac and Windows?
Yes. CocoConvert is a web-based tool that works in all modern browsers — Chrome, Safari, Firefox, Edge — on any operating system including macOS, Windows, Linux, iOS, and Android.
Is CocoConvert free for ARW to HEIC?
Yes. Free users get 5 conversions per hour (250 MB each). Pro subscribers unlock 100 files per hour, 5 GB per file, and priority processing.
What tools does CocoConvert use for ARW to HEIC?
CocoConvert uses FFmpeg for audio/video, Sharp for images, and qpdf for documents — the same open-source libraries used by Netflix, YouTube, and major enterprise platforms.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.