Image format

ICO File Format

ICO is the icon format commonly used for app icons, favicons, and Windows-style icon assets. It is mostly relevant for interface assets, branding, and compatibility with icon-based systems.

Why people use ICO

  • Useful for favicons and icon-related design work.
  • Relevant for Windows icons and small branded assets.
  • Often created from PNG or converted back into PNG for editing.

Best use cases for ICO

  • Favicons
  • App and website icons
  • Small interface assets
Common conversions

Popular ICO conversion paths

These are some of the most practical conversion routes people use when working with ICO files in everyday compatibility, editing, sharing, playback, or optimization workflows.

Related formats

Explore similar formats

If you are comparing workflows, compatibility, or output quality, these related formats are worth checking before you convert.

Start from the converter

If you already know your target format, you can jump directly into the converter and start with a ICO-related workflow right away.

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Converto includes format guides for audio, video, and image workflows. These pages help users understand where each format fits before converting.