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HomeICO vs DDS
.ico
.dds

ICO vs DDS

Compare Icon File and DirectDraw Surface 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

DDS

DirectDraw Surface

DirectDraw Surface (.dds) is a image file format.

.ddsimage

ICO vs DDS: Feature Comparison

FeatureICODDS
Full NameIcon FileDirectDraw Surface
File Extension.ico.dds
Categoryimageimage
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use ICO vs DDS

Use ICO when you need:

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

Use DDS when you need:

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

Convert Between Them

ICO DDSDDS ICO
ফাইল বাছাই করুন

অথবা এখানে ফাইল টেনে আনুন

সর্বোচ্চ ফাইল আকার: 2GB

আপনার ফাইলগুলি আপনার ব্রাউজারে স্থানীয়ভাবে প্রক্রিয়া করা হয়।

Learn More About These Formats

ICO Converter DDS Converter

Frequently Asked Questions

What is the difference between ICO and DDS?
ICO (Icon File) and DDS (DirectDraw Surface) are both image file formats. ICO files use the .ico extension while DDS uses .dds. They differ in compression, quality, compatibility, and intended use cases.
Can I convert ICO to DDS for free?
Yes! Convert999 lets you convert ICO to DDS 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 DDS?
It depends on your use case. ICO (Icon File) may be better for certain workflows, while DDS (DirectDraw Surface) 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

DDS Converter

Convert from DDS

File Tools

Compress, resize, merge

Convert to ICO

All sources → ICO

Convert to DDS

All sources → DDS

Format Statistics

Trends & data 2025

More Format Comparisons

JPGvsPNGPNGvsWEBPJPGvsWEBPSVGvsPNGHEICvsJPGBMPvsJPGTIFFvsJPGGIFvsPNG