AVIF to ICO Converter
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Supports: AVIF
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 AVIF to ICO Online
- Upload Your AVIF File: Click "+ Add Files" to select an AVIF 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 AVIF to ICO?
AVIF is the most efficient modern image format, but it can't be used as a favicon directly. ICO is the standard favicon format that all browsers recognize. Converting AVIF to ICO lets you create favicons from your highest-quality source images.
AVIF as a Source Format
AVIF images are excellent favicon sources because:
- High quality at small sizes — AVIF's compression preserves detail better than JPG at the same file size
- Wide color gamut — supports HDR and 10-bit color depth
- Transparency support — alpha channel for transparent favicon backgrounds
Favicon Best Practices
Competitors like convertico.com offer AVIF-specific options including "HDR handling and color depth" configuration. icosmith.com explains that "some environments still expect favicon.ico at the site root" and recommends "ICO for compatibility, plus Apple Touch PNG and a masked SVG." converttool.org offers three standard sizes (16×16, 32×32, 256×256) with background color customization for transparent content. XConvert adds image quality percentage, resolution control, and transparency preservation.
Favicon Best Practices
| Tip | Why |
|---|---|
| Use a square source image | Favicons are always square — non-square images get distorted |
| Keep the design simple | At 16×16 pixels, only bold shapes and high contrast are visible |
| Test on dark and light backgrounds | Browser tabs can be light or dark themed |
| Include 16×16, 32×32, and 48×48 | Covers all common display sizes |
Frequently Asked Questions
Is it free?
Yes. Completely free with no watermarks, no sign-up required, and no file count limits.
Does AVIF transparency carry over to ICO?
Yes. AVIF alpha channel transparency is preserved in the ICO output.
What's the best source image size?
Start with at least 256×256 pixels. The converter will create smaller sizes from this source.
Can I convert multiple files at once?
Yes. Upload multiple AVIF 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.