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HomeICO vs HDR
.ico
.hdr

ICO vs HDR

Compare Icon File and Radiance HDR Image formats — understand the key differences and when to use each

Format Overview

ICO

Icon File

ICO (Icon) is a file format used for icons in Microsoft Windows. ICO files can contain multiple sizes and color depths in a single file, typically including 16×16, 32×32, 48×48, and 256×256 pixel variants. The 256×256 size uses PNG compression. ICO is also used for website favicons (favicon.ico) displayed in browser tabs. Converting PNG to ICO is a common task for web developers and software creators.

.icoimage

HDR

Radiance HDR Image

Radiance HDR Image (.hdr) is a image file format.

.hdrimage

ICO vs HDR: Feature Comparison

FeatureICOHDR
Full NameIcon FileRadiance HDR Image
File Extension.ico.hdr
Categoryimageimage
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use ICO vs HDR

Use ICO when you need:

  • •Files in Icon File format for maximum compatibility
  • •Industry-standard image format support
  • •Wide software and platform compatibility

Use HDR when you need:

  • •Files in Radiance HDR Image format for specific workflows
  • •Optimized image format features
  • •Modern format advantages and smaller file sizes

Convert Between Them

ICO HDRHDR ICO
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Learn More About These Formats

ICO Converter HDR Converter

Frequently Asked Questions

What is the difference between ICO and HDR?
ICO (Icon File) and HDR (Radiance HDR Image) are both image file formats. ICO files use the .ico extension while HDR uses .hdr. They differ in compression, quality, compatibility, and intended use cases.
Can I convert ICO to HDR for free?
Yes! Convert999 lets you convert ICO to HDR completely free, directly in your browser. No file upload to any server, no registration needed — your files stay private on your device.
Which is better, ICO or HDR?
It depends on your use case. ICO (Icon File) may be better for certain workflows, while HDR (Radiance HDR Image) excels in others. Consider factors like file size, quality, software compatibility, and your specific needs.
Is it safe to convert files on Convert999?
Absolutely. Convert999 processes all files 100% locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

ICO Converter

Convert from ICO

HDR Converter

Convert from HDR

File Tools

Compress, resize, merge

Convert to ICO

All sources → ICO

Convert to HDR

All sources → HDR

Format Statistics

Trends & data 2025

More Format Comparisons

JPGvsPNGPNGvsWEBPJPGvsWEBPSVGvsPNGHEICvsJPGBMPvsJPGTIFFvsJPGGIFvsPNG