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ICO to BMP Converter

Convert ICO images to BMP right in your browser, one file or a whole batch. BMP has no transparency, so you pick the colour that fills transparent areas.

  • Free, no sign-up
  • Files never leave your device
  • Batch processing
  • No watermark
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Your files are processed on this device and are never uploaded to a server.

What happens when you convert ICO to BMP

CompressionLossless → Lossless
TransparencyNot supported: transparent areas get the background colour you pick (white by default)
MetadataEXIF, GPS location and camera data are not copied to the new file
Opens inWindows and almost every desktop program, but not most websites

Sizes are typical values; your files will vary with content and settings.

ICO

ICO Windows Icon

ICO is a container that holds one or more square icon images at different sizes. Browsers use it for favicon.ico and Windows uses it for application and shortcut icons.

ICO converter
BMP

BMP Windows Bitmap

BMP is the uncompressed bitmap format native to Windows. Files are large because each pixel is stored raw, but almost every program, embedded device and legacy system can read it.

BMP converter

How to use the ICO to BMP Converter

  1. 1

    Click Choose files or drop your ICO images onto the page.

  2. 2

    Adjust the BMP options if needed. The defaults work well for most images.

  3. 3

    Click Convert, then download each BMP or all of them as a ZIP.

Why convert ICO to BMP?

ICO files are Windows icons and website favicons, and one file often holds several sizes. Icons are limited to 256×256 pixels and must be square. Choose BMP only when a legacy program or device needs uncompressed bitmaps.

ICO to BMP settings

Pick a background colour to replace transparent areas. You can also cap the width and height, which resizes large photos in the same step.

Frequently asked questions

Will the BMP lose quality?

No. Both formats are lossless, so every pixel or sample in your ICO is kept exactly.

Is transparency kept when converting ICO to BMP?

BMP cannot store transparency, so transparent areas are filled with a solid colour. White is used by default; you can pick any background colour in the options before converting.

Questions about privacy, file-size limits or conversion speed are answered in the general FAQ.