AnyConvert

Convert AVIF to ICO Online

AVIF is a cutting-edge image format built on the AV1 video codec. ICO files bundle multiple raster icon sizes in a single container for Microsoft Windows, typically ranging from 16×16 to 512×512 pixels. AnyConvert converts AVIF to ICO securely without installing desktop software.

AVIF to ICO Converter

Convert your AVIF files to ICO format quickly and easily. Upload your file and download the result.

Max file size: 50MB

Why convert AVIF to ICO?

Switching from AVIF helps you avoid encoding is computationally expensive compared to legacy formats. ICO excels at stores multiple icon resolutions and color depths in a single asset, making it a better fit when clients or platforms expect windows desktop application icons.

Windows Icon File also offers native integration with windows executables, installers, and shortcuts. That means your converted files stay useful for windows desktop application icons and favicons for legacy browsers that still expect .ico files.

AVIF strengths

  • Significant savings over JPEG and often WebP for photographic content
  • Supports HDR, wide color gamuts, alpha transparency, and animation
  • Royalty-free and engineered for efficient delivery on modern hardware

ICO advantages

  • Stores multiple icon resolutions and color depths in a single asset
  • Native integration with Windows executables, installers, and shortcuts
  • Supports full alpha transparency for crisp rendering against any background

Key differences

FeatureAVIFICO
CompressionLossyLossy or lossless
Transparency / AlphaSupports alpha channelSupports alpha channel
Typical file sizeCompact (lossy compression)Varies (depends on chosen codec)
Best suited forHigh-quality hero imagery with HDR on modern websites and Mobile applications that need pristine visuals at minimal bandwidth costWindows desktop application icons and Favicons for legacy browsers that still expect .ico files
StandardOpen, royalty-free specificationProprietary or partially restricted

Before you convert

  • Keep a backup of your original file before converting so you can roll back if needed.
  • Export any critical metadata (EXIF, IPTC, ID3, or captions) because ICO may not retain it.
  • Review known pain points: Still limited support in some design tools and CMS pipelines. Adjust your source file accordingly.

Quality tips

  • Use the resize controls to match the pixel dimensions your project actually needs.
  • Download the result immediately and open it in the target application to verify everything matches expectations.

Where ICO fits best

Once you have the converted file, you can plug it straight into windows desktop application icons, favicons for legacy browsers that still expect .ico files, and distribution packages that must include multiple dpi variations. ICO is the format teams expect in those environments, so you spend less time re-exporting or explaining compatibility issues.

Common ICO use cases

  • Windows desktop application icons
  • Favicons for legacy browsers that still expect .ico files
  • Distribution packages that must include multiple DPI variations

Tools that open ICO

  • GIMP
  • IcoFX
  • RealWorld Icon Editor

Frequently asked questions

Does converting AVIF to ICO reduce quality?

No—ICO preserves the original fidelity. You still want to open the converted file once to confirm fonts, colors, or audio loudness survived the transfer.

Is there a file size limit for converting AVIF?

Yes—uploads up to 150 MB convert reliably in the browser. For larger assets, split them into smaller segments first so the process stays responsive.