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HomeICO vs NEF
.ico
.nef

ICO vs NEF

Compare Icon File and Nikon Raw 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

NEF

Nikon Raw Image

Nikon Raw Image (.nef) is a image file format.

.nefimage

ICO vs NEF: Feature Comparison

FeatureICONEF
Full NameIcon FileNikon Raw Image
File Extension.ico.nef
Categoryimageimage
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use ICO vs NEF

Use ICO when you need:

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

Use NEF when you need:

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

Convert Between Them

ICO NEFNEF ICO
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Learn More About These Formats

ICO Converter NEF Converter

Frequently Asked Questions

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

NEF Converter

Convert from NEF

File Tools

Compress, resize, merge

Convert to ICO

All sources → ICO

Convert to NEF

All sources → NEF

Format Statistics

Trends & data 2025

More Format Comparisons

JPGvsPNGPNGvsWEBPJPGvsWEBPSVGvsPNGHEICvsJPGBMPvsJPGTIFFvsJPGGIFvsPNG