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HomeAI vs SK
.ai
.sk

AI vs SK

Compare Adobe Illustrator and Sketch formats — understand the key differences and when to use each

Format Overview

AI

Adobe Illustrator

Adobe Illustrator (.ai) is a image file format.

.aiimage

SK

Sketch

Sketch (.sk) is a vector file format.

.skvector

AI vs SK: Feature Comparison

FeatureAISK
Full NameAdobe IllustratorSketch
File Extension.ai.sk
Categoryimagevector
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✗ No✓ Yes

When to Use AI vs SK

Use AI when you need:

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

Use SK when you need:

  • •Files in Sketch format for specific workflows
  • •Optimized vector format features
  • •Modern format advantages and smaller file sizes

Convert Between Them

SK AI
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最大文件大小：2GB

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Learn More About These Formats

AI Converter SK Converter

Frequently Asked Questions

What is the difference between AI and SK?
AI (Adobe Illustrator) and SK (Sketch) are both image/vector file formats. AI files use the .ai extension while SK uses .sk. They differ in compression, quality, compatibility, and intended use cases.
Can I convert AI to SK for free?
Yes! Convert999 lets you convert AI to SK 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, AI or SK?
It depends on your use case. AI (Adobe Illustrator) may be better for certain workflows, while SK (Sketch) 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.

AI Converter

Convert from AI

SK Converter

Convert from SK

File Tools

Compress, resize, merge

Convert to AI

All sources → AI

Convert to SK

All sources → SK

Format Statistics

Trends & data 2025

More Format Comparisons

JPGvsPNGPNGvsWEBPJPGvsWEBPSVGvsPNGHEICvsJPGBMPvsJPGTIFFvsJPGGIFvsPNG