EXR vs ICO
Una comparativa detallada de OpenEXR Image y ICO Icon — tamaño de archivo, calidad, compatibilidad y cuál elegir según tu flujo de trabajo.
OpenEXR Image
Raster & Vector ImagesOpenEXR is a high dynamic range imaging format used in visual effects and film production.
Sobre los archivos EXRICO Icon
Raster & Vector ImagesICO is the icon file format used for favicons and Windows application icons. A single ICO file can contain multiple image sizes and color depths for different display contexts.
Sobre los archivos ICOComparativa de ventajas
EXR Ventajas
- Genuine high-dynamic-range storage (32-bit float per channel).
- Multi-channel layers native — store an entire render pass in one file.
- Industry standard across every major VFX and animation studio.
- Deep samples enable modern compositing workflows.
- Open-source reference implementation with mature tooling.
ICO Ventajas
- Multi-resolution: one file, many sizes, OS picks the right one.
- Universal favicon support in every browser since IE5.
- Supports transparency (1-bit since 1985, full alpha since XP).
- Tiny file size — an entire favicon pack typically fits in under 15 KB.
- No licensing or patent concerns — fully in the public domain spec-wise.
Limitaciones
EXR Limitaciones
- Enormous file sizes.
- Not a web format — browsers don't display EXR.
- Decoding is CPU-intensive.
- Consumer apps rarely need HDR at this precision.
ICO Limitaciones
- Cannot compress continuous-tone images efficiently — use PNG or WebP for photos.
- Format is essentially frozen in 1999 — no HDR, no wide gamut, no modern features.
- Maximum image dimension is 256×256 px (inside an ICO container).
- Editing requires specialized tools — most image editors treat it as a curiosity.
Especificaciones técnicas
| Especificación | EXR | ICO |
|---|---|---|
| MIME type | image/x-exr | image/vnd.microsoft.icon |
| Extension | .exr | — |
| Bit depths | 16-bit half-float, 32-bit float, 32-bit uint | — |
| Compression | ZIP, PIZ, PXR24, B44, DWAA, DWAB, RLE, None | Uncompressed bitmap or embedded PNG (Vista+) |
| Max channels | Practically unlimited (arbitrary named layers) | — |
| Max resolutions per file | — | 65 535 images |
| Max single image size | — | 256×256 px |
| Color depths | — | 1, 4, 8, 24, 32 bits per pixel |
Tamaños típicos de archivo
EXR
- 1080p half-float with alpha 15-25 MB
- 4K multichannel VFX render 200-500 MB
- 8K deep EXR (heavy comp) 1-4 GB per frame
ICO
- Classic favicon (16×16 only) < 2 KB
- Multi-size favicon pack (16/32/48/256) 5-15 KB
- Full Windows app icon set 20-100 KB
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Preguntas frecuentes
EXR (OpenEXR Image) is an image format used to store raster graphics — a two-dimensional grid of pixels describing a picture. It is part of the raster & vector images family and designed around a specific trade-off between file size, visual fidelity, and feature support (transparency, colour depth, compression type). Photographers, web designers, and content creators choose EXR when its particular strengths match the publishing target.
EXR (OpenEXR Image) is an image formato used to store raster graphics — a two-dimensional grid of pixels describing a picture. It is part of the raster & vector images family e designed around a specific trade-off between tamanho do arquivo, visual fidelity, e feature support (transparency, colour depth, compressão type). Photographers, web designers, e content creators choose EXR when its particular strengths match the publishing target.
Most desktop photo viewers (Windows Photos, macOS Preview, GIMP, Photoshop, Affinity Photo) open EXR natively. On mobile, iOS Photos and Google Photos display EXR in the gallery when supported by the OS. If the format is rare or new, convert to JPG or PNG first — both are universally readable — using our EXR to JPG or EXR to PNG converter.
Most desktop photo viewers (Windows Photos, macOS Preview, GIMP, Photoshop, Affinity Photo) abrir EXR natively. On mobile, iOS Photos e Google Photos display EXR no gallery when suportado por the OS. If the formato is rare ou new, converter to JPG ou PNG first — both are universally readable — usando our EXR to JPG ou EXR to PNG converter.
Upload the EXR to KaijuConverter and pick a target format (JPG, PNG, WebP, HEIC, TIFF, BMP, SVG, PDF). The conversion runs in the browser via ImageMagick and returns a download in seconds. No account or installation required; both input and output delete automatically within two hours.
It depends on the task. JPG is the smallest file size for photographs; PNG is lossless with transparency; EXR has its own niche that may favour colour depth, animation, or encoding efficiency over one or both of those. For the final web publish, test all three and measure file size plus visible quality on real content.