Image Conversion
Convert ICO to HDR Online — Free
Fast, free ICO to HDR converter. No registration required.
またはインポート元
200万以上のファイル変換
数千人のユーザーに信頼されています
安全な転送
HTTPS暗号化アップロード
プライバシー優先
処理後にファイルを自動削除
登録不要
すぐに変換を開始
どこでも動作
あらゆるブラウザ、あらゆるデバイス
変換方法
1
Upload your .ico file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .hdr file when it's ready.
ICOとは？
ICO is the image format used for icons in Windows. It can contain multiple image sizes in a single file for different display contexts.
形式の詳細
- 正式名称
- Windows Icon
- 拡張子
- .ico
主な特徴
- Windows icons
- Multiple sizes
- Favicon support
- Transparency
HDRとは？
HDR (Radiance) is a high dynamic range image format used in 3D rendering, lighting design, and photography. It stores full floating-point color data for realistic lighting effects.
形式の詳細
- 正式名称
- Radiance HDR
- 拡張子
- .hdr
主な特徴
- High dynamic range
- 3D rendering
- Lighting design
- Float precision
ICOとHDRの比較
| 特徴 | ICO | HDR |
|---|---|---|
| 正式名称 | Windows Icon | Radiance HDR |
| 拡張子 | .ico | .hdr |
| 最適な用途 | Windows icons | High dynamic range |
よくある質問
Converting between lossless formats (PNG, BMP, TIFF) preserves perfect quality. For lossy formats like JPG and WebP, you can adjust the quality slider to control compression. Default settings prioritize visual quality.
Transparency is preserved when converting to formats that support it (PNG, WebP, TIFF, GIF). If the target format doesn't support transparency, a white background is applied.
Yes. Upload your HEIC files and convert to JPG, PNG, or WebP instantly. Perfect for making iPhone photos compatible with any device or platform.
No resolution limit. We handle images of any size — from small icons to high-resolution photos and print-ready images.
Pro users can batch convert multiple images at once. Free users can convert one image at a time. All conversions are processed on our servers, so even large files convert quickly.