JPG to ICO Converter
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Supports: JPG, JPEG, JFIF
Advanced Options - Our defaults are optimized for the best results. We recommend you keeping the defaults unless you have a specific need.
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Need help?How to Convert JPG to ICO Online
- Upload Your JPG File: Click "+ Add Files" to select a JPG/JPEG image from your computer, Google Drive, or Dropbox.
- Choose Settings: Adjust image quality percentage, resolution (by percentage or custom dimensions), and output format options.
- Convert and Download: Click "Convert" and download your ICO file.
Why Convert JPG to ICO?
ICO (Icon) is the standard format for website favicons and Windows application icons. Browsers display favicons in tabs, bookmarks, and history — they're essential for brand recognition.
ICO Size Requirements
A proper ICO file contains multiple sizes for different display contexts:
| Size | Used For |
|---|---|
| 16×16 | Browser tab favicon |
| 32×32 | Browser bookmark, Windows taskbar |
| 48×48 | Windows desktop icon |
| 64×64 | High-DPI browser tabs |
| 128×128 | macOS Dock (via PNG fallback) |
| 256×256 | Windows Vista+ large icon view |
Tips for Best Results
Competitors like icosmith.com generate multi-size ICOs (16-256px) and explain that "16×16, 32×32 are for browser tabs, 48×48 and 64×64 for Hi-DPI desktop, 128×128 and 256×256 for Windows/legacy contexts." convertico.com notes that "JPG doesn't support transparency" so users should "select a background color." codeitbro.com explains that "modern ICO format supports embedded PNG data at multiple resolutions inside a single container." XConvert adds image quality control, resolution options, and transparency settings.
Tips for Best Results
- Start with a square image — non-square images will be cropped or distorted at small sizes
- Use a simple design — complex images become unrecognizable at 16×16 pixels
- High contrast — favicons need to be recognizable against both light and dark browser themes
- Minimum source size: 256×256 — scaling up from smaller images produces blurry icons
Frequently Asked Questions
Is it free?
Yes. Completely free with no watermarks, no sign-up required, and no file count limits.
Can I create a multi-size ICO?
ICO files can contain multiple sizes. Check Advanced Options for multi-size icon generation.
What about PNG favicons?
Modern browsers also support PNG favicons via <link rel="icon" type="image/png">. However, ICO is still the most universally compatible format, especially for older browsers.
Can I convert multiple images at once?
Yes. Upload multiple JPG files and convert them all to ICO format.
Does it work on mobile?
Yes. Works in any modern browser on all devices — no app installation required.