ICO to BMP Converter
Convert ICO images to BMP online for free. Use this exact converter when you need better compatibility, different transparency behavior, or a format that fits your next workflow better.
Converting ICO to BMP re-encodes the image into the BMP container while preserving resolution and color information. The trade-off depends on the target format: lossy targets (JPG, WebP) shrink file size; lossless targets (PNG, TIFF) preserve every pixel exactly.
Max file size 50MB. Sign up for more.
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Checking files and selected output formats.
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Switch ICO Images to BMP in 3 Steps
Change image format for better compatibility, smaller files, transparency support, or a more web-friendly delivery format.
Drag and drop your ICO files or click to browse. Supports photos, screenshots, graphics, and images with transparency. Batch upload multiple files for bulk conversion.
Our engine converts your ICO to BMP while preserving the original resolution and DPI. Alpha transparency and embedded colour profiles (sRGB, Adobe RGB) are retained where the target format supports them.
Download your converted BMP images individually or as a ZIP archive. Image quality is maintained at the original resolution — no downscaling or watermarks applied.
Why Convert ICO to BMP
BMP stores images as raw, uncompressed pixel data by default. Every single pixel is preserved exactly as captured, making BMP ideal for archival storage and pixel-level analysis.
BMP is the native bitmap format of Windows, supported by every Windows application from Paint to professional CAD software. No drivers, codecs, or plugins are ever needed.
BMP has one of the simplest binary structures of any image format. Custom software, embedded systems, and hardware devices can read and write BMP files with minimal parsing code.
The uncompressed pixel grid in BMP files allows direct memory-mapped access to individual pixels. Scientific instruments, industrial cameras, and image processing pipelines benefit from this simplicity.
Older industrial equipment, medical imaging devices, and embedded systems often require BMP input. Converting to BMP ensures compatibility with legacy hardware and specialized instruments.
ICO vs BMP: Side-by-side
Technical comparison of the two formats — useful for deciding which to use, or for confirming what changes during conversion.
| Property | ICO | BMP |
|---|---|---|
| Full name | Windows Icon | Bitmap |
| Year introduced | 1985 | 1990 |
| Developer / standard body | Microsoft | Microsoft |
| MIME type | image/x-icon | image/bmp |
| File extension | .ico | .bmp |
| Compression | Lossless (PNG or BMP inside) | Uncompressed (typically) |
| Color / data depth | 1 to 32-bit | 1 to 32-bit |
| Max dimensions / size | 256 × 256 px per layer | 32,767 × 32,767 px |
| Transparency | Yes | Yes |
| Animation | No | No |
| Standard / specification | Microsoft | Microsoft Windows |
| Best for | Favicons, Windows application icons | Legacy Windows applications, raw pixel data |
ICO to BMP FAQ
Quick answers about compatibility, quality, metadata handling, and the most common reasons to convert ICO files to BMP.
How do I convert ICO to BMP online?
Why would I convert ICO to BMP?
Can I convert ICO to BMP without losing too much quality?
Will converting ICO to BMP change transparency?
Will converting ICO to BMP change file size?
Will converting ICO to BMP make the file size smaller?
Can I batch convert multiple ICO files to BMP at once?
Is it safe to convert ICO to BMP online?
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