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HEIF vsICO: Key Differences & Best Format for You

Compare the features of HEIF and ICO file formats to choose the best option for your needs.

Basic Information

HEIFICO
CategoryThe general type of file (audio, image, etc.).
imagesimages
CompressionMethod used to reduce file size (Lossy, Lossless, Uncompressed).
LossyLossless
Relative SizeTypical file size compared to other formats.
SmallSmall
MIME TypesCommon MIME types associated with the format.
  • image/heif
  • image/heic
  • image/x-icon
  • image/vnd.microsoft.icon
Open FormatIs the format specification publicly available and free to use?
NoNo

Technical Details

HEIFICO
Bit DepthNumber of bits used to represent color or audio sample amplitude (higher means more detail).
1032
ResolutionImage dimensions (pixels) or audio sample rate/video dimensions.
Pixel dimensionsMultiple sizes (e.g., 16x16, 32x32, 256x256)
Max QualityHighest achievable quality level or characteristic.
High quality at lower file sizes than JPEGDepends on internal format (PNG best)
Encoding MethodSpecific algorithm or standard used for encoding the data.
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Max File Size LimitAny known maximum file size limitations.
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Features & Usage

HEIFICO
CompatibilitySoftware, devices, or platforms that support the format.
  • Apple devices (iOS 11+, macOS High Sierra+)
  • Windows 10+ (with extensions)
  • Android 9+
  • Windows
  • Web Browsers (for favicons)
Use CasesCommon applications and scenarios where the format is used.
  • Mobile photography (default on iPhones)
  • Image sequences
  • Storing computational photography data
  • Application icons
  • Website favicons
Metadata SupportCan the format store additional information (tags, descriptions, etc.)?
YesNo
Transparency SupportDoes the format support transparent backgrounds (for images)?
YesYes
Editing FriendlyIs the format suitable for easy editing without significant quality loss?
NoNo
Encryption SupportDoes the format support password protection or encryption?
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Pros & Cons

HEIFICO
ProsAdvantages and strengths of the format.
  • High compression efficiency (smaller files than JPEG for similar quality)
  • Supports transparency, depth maps, animations
  • Stores multiple sizes/resolutions in one file
  • Standard for Windows icons
  • Used for favicons
ConsDisadvantages and weaknesses of the format.
  • Not yet universally supported
  • Requires specific software or OS support
  • Limited use case (icons)
  • Can be complex to create properly