CRW to ICO — Format Comparison & Online Converter
Fast, instant CRW (CANON) to ICO conversion. No signup required. Just drop your .crw file and get .ico in seconds.
Batch Settings
デジタルカメラで撮影されたRAW画像、特にキヤノン独自のCRW形式は、その豊かな情報量ゆえに、写真編集の出発点として重宝されます。しかし、ウェブサイトのファビコンやアプリケーションのアイコン、あるいはちょっとした画像ファイルとして手軽に利用したい場合、CRW形式は汎用性に欠けることがあります。そこで登場するのが、Windowsのアイコンファイルとして広く認識されているICO形式です。CRWファイルをICO形式に変換することで、RAWデータの持つ精細さを保ちつつ、より多くの場面で活用できるようになります。この変換ツールは、複雑な設定なしに、どなたでも直感的にご利用いただけるよう設計されています。大切な画像を、用途に合わせて最適な形で生まれ変わらせるお手伝いができれば幸いです。
- ウェブサイトのオリジナルファビコン作成
- ビジネス資料のカスタムアイコン
- 同人活動での画像素材の変換
日本のデザインでは、縦書きや独特のフォントを用いるケースが多く、ICO形式へ変換する際も、元のCRWで保持されていた文字情報や細かい線の表現が損なわれないよう注意が必要です。
About CRW (CANON) to ICO Conversion
CRW and ICO (introduced 1985) are both image formats, but they differ in important ways. CRW is a widely used file format. ICO is the icon format used for website favicons and Windows application icons.
When you convert CRW to ICO, the goal is to convert between formats quickly. Converting CRW to ICO maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.
Your CRW file is decoded and re-encoded as ICO. The conversion involves 4 steps: (1) your crw file is uploaded and validated, (2) the file is decoded (parsed into its raw data), (3) the data is re-encoded in ico format, (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 need a ICO file. For the opposite direction, CocoConvert also supports ICO to CRW conversion.
How to Convert CRW (CANON) to ICO
- 1
Upload .crw file
Select your CRW file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .ico
Set ICO as the output format. The converter uses optimal settings based on the CRW→ICO conversion profile.
- 3
Convert
The server-side engine decodes your CRW file and re-encodes it as ICO. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .ico file. Multiple output files can be downloaded together.
What Happens When You Convert CRW (CANON) to ICO
Your CRW file is decoded and re-encoded as ICO.
Your CRW file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in ICO format
The converted file is ready for download
Format Comparison
CRW (Canon)
.crw file
| Extension | .crw |
| MIME Type | image/x-canon-crw |
| Category | Image |
ICO
.ico file
| Extension | .ico |
| MIME Type | image/x-icon |
| Category | Image |
Should You Convert CRW (CANON) to ICO?
When to Convert
- ✓When you need a ICO file
Frequently Asked Questions
What is the difference between CRW and ICO?
CRW is a widely used file format. ICO is the icon format used for website favicons and Windows application icons.
Does CRW to ICO conversion affect quality?
Converting CRW to ICO maintains high quality with CocoConvert's optimised encoder settings.
Which format has better compression, CRW or ICO?
CRW is a common image format. ICO uses lossless compression. The better choice depends on whether you prioritize file size or quality.
How long does CRW to ICO 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 CRW or ICO better for long-term storage?
ICO is better for archival since it preserves all original data.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.