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HomeHEIF vs ICO
.heif
.ico

HEIF vs ICO

Compare High Efficiency Image Format and Icon File formats — understand the key differences and when to use each

Format Overview

HEIF

High Efficiency Image Format

High Efficiency Image Format (.heif) is a image file format.

.heifimage

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

HEIF vs ICO: Feature Comparison

FeatureHEIFICO
Full NameHigh Efficiency Image FormatIcon File
File Extension.heif.ico
Categoryimageimage
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use HEIF vs ICO

Use HEIF when you need:

  • •Files in High Efficiency Image Format 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

HEIF ICOICO HEIF
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Learn More About These Formats

HEIF Converter ICO Converter

Frequently Asked Questions

What is the difference between HEIF and ICO?
HEIF (High Efficiency Image Format) and ICO (Icon File) are both image file formats. HEIF files use the .heif extension while ICO uses .ico. They differ in compression, quality, compatibility, and intended use cases.
Can I convert HEIF to ICO for free?
Yes! Convert999 lets you convert HEIF 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, HEIF or ICO?
It depends on your use case. HEIF (High Efficiency Image Format) 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.

HEIF Converter

Convert from HEIF

ICO Converter

Convert from ICO

File Tools

Compress, resize, merge

Convert to HEIF

All sources → HEIF

Convert to ICO

All sources → ICO

Format Statistics

Trends & data 2025

More Format Comparisons

JPGvsPNGPNGvsWEBPJPGvsWEBPSVGvsPNGHEICvsJPGBMPvsJPGTIFFvsJPGGIFvsPNG