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BMP vsICO: Key Differences & Best Format for You

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

Basic Information

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

Technical Details

BMPICO
Bit DepthNumber of bits used to represent color or audio sample amplitude (higher means more detail).
2432
ResolutionImage dimensions (pixels) or audio sample rate/video dimensions.
Pixel dimensions (e.g., 1920x1080)Multiple sizes (e.g., 16x16, 32x32, 256x256)
Max QualityHighest achievable quality level or characteristic.
Lossless (matches source)Depends 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

BMPICO
CompatibilitySoftware, devices, or platforms that support the format.
  • Windows
  • Most image editors and viewers
  • Windows
  • Web Browsers (for favicons)
Use CasesCommon applications and scenarios where the format is used.
  • Simple graphics on Windows
  • Screenshots (older systems)
  • Archival (if lossless needed)
  • Application icons
  • Website favicons
Metadata SupportCan the format store additional information (tags, descriptions, etc.)?
NoNo
Transparency SupportDoes the format support transparent backgrounds (for images)?
NoYes
Editing FriendlyIs the format suitable for easy editing without significant quality loss?
YesNo
Encryption SupportDoes the format support password protection or encryption?
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Pros & Cons

BMPICO
ProsAdvantages and strengths of the format.
  • Lossless quality
  • Simple format
  • Widely supported on Windows
  • Stores multiple sizes/resolutions in one file
  • Standard for Windows icons
  • Used for favicons
ConsDisadvantages and weaknesses of the format.
  • Very large file sizes
  • Not suitable for web use
  • No transparency support (usually)
  • Limited use case (icons)
  • Can be complex to create properly