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Image Conversion

Convert HDR to ICO Online — Free

Fast, free HDR to ICO converter. No registration required.

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Works Everywhere

Any browser, any device

How to Convert

1

Upload your .hdr 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 .ico file when it's ready.

What is HDR?

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.

Format Details

Full Name
Radiance HDR
Extension
.hdr

Key Features

  • High dynamic range
  • 3D rendering
  • Lighting design
  • Float precision

What is ICO?

ICO is the image format used for icons in Windows. It can contain multiple image sizes in a single file for different display contexts.

Format Details

Full Name
Windows Icon
Extension
.ico

Key Features

  • Windows icons
  • Multiple sizes
  • Favicon support
  • Transparency

HDR vs ICO

FeatureHDRICO
Full NameRadiance HDRWindows Icon
Extension.hdr.ico
Best ForHigh dynamic rangeWindows icons

Frequently Asked Questions

Yes. You can convert up to 5 files per day completely free, with no watermark or registration required.
Most files convert in under 30 seconds. Larger files (over 500MB) may take 1-3 minutes.
No. Our converter uses optimized encoding settings by default to preserve the original quality.
Free users can convert files up to 100MB. Pro users can convert files up to 2GB.
Yes. Our converter works in any modern web browser on any device.

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