Is it free to convert between HDR and ICO?

Yes, Convert999 is 100% free. All conversions happen locally in your browser with no file size limits, no registration, and no watermarks.

.hdr

.ico

HDR vs ICO

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

Format Overview

HDR

Radiance HDR Image

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

.hdrimage

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 vs ICO: Feature Comparison

Feature	HDR	ICO
Full Name	Radiance HDR Image	Icon File
File Extension	.hdr	.ico
Category	image	image
Free to Convert	✓ Yes	✓ Yes
Browser Support	✓ All Browsers	✓ All Browsers
Convert to Each Other	✓ Yes	✓ Yes

When to Use HDR vs ICO

Use HDR when you need:

•Files in Radiance HDR Image format for maximum compatibility
•Industry-standard image format support
•Wide software and platform compatibility

Use ICO when you need:

•Files in Icon File format for specific workflows
•Optimized image format features
•Modern format advantages and smaller file sizes

Convert Between Them

HDR ICO ICO HDR

选择文件

或将文件拖放到此处

最大文件大小：2GB

您的文件在浏览器中本地处理，不会上传到任何服务器。

Learn More About These Formats

HDR Converter ICO Converter

Frequently Asked Questions

What is the difference between HDR and ICO?

HDR (Radiance HDR Image) and ICO (Icon File) are both image file formats. HDR files use the .hdr extension while ICO uses .ico. They differ in compression, quality, compatibility, and intended use cases.

Can I convert HDR to ICO for free?

Yes! Convert999 lets you convert HDR to ICO 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, HDR or ICO?

It depends on your use case. HDR (Radiance HDR Image) may be better for certain workflows, while ICO (Icon File) 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.

HDR Converter

Convert from HDR

ICO Converter

Convert from ICO

File Tools

Compress, resize, merge

Convert to HDR

All sources → HDR

Convert to ICO

All sources → ICO

Format Statistics

Trends & data 2025

More Format Comparisons

JPGvsPNG PNGvsWEBP JPGvsWEBP SVGvsPNG HEICvsJPG BMPvsJPG TIFFvsJPG GIFvsPNG

Format Overview

HDR

Radiance HDR Image

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

.hdrimage

ICO

Icon File

.icoimage

Feature

HDR

ICO

Full Name

Radiance HDR Image

Icon File

File Extension

.hdr

.ico

Use HDR when you need:

•Files in Radiance HDR Image format for maximum compatibility
•Industry-standard image format support
•Wide software and platform compatibility

Use ICO when you need:

•Files in Icon File format for specific workflows
•Optimized image format features
•Modern format advantages and smaller file sizes

Frequently Asked Questions

What is the difference between HDR and ICO?

Can I convert HDR to ICO for free?

Yes! Convert999 lets you convert HDR to ICO 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, HDR or ICO?

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.