Free ICO to BMP Converter
Securely convert ICO to BMP in your browser. No uploads, fast, and free.
Convert ICO to BMP Instantly
The fastest, most secure way to change image formats online.
Looking to convert ICO images to BMP? You've found the right tool. Whether you need to optimize for the web, ensure compatibility, or just change formats, our converter handles it instantly.
Best of all, this tool works entirely offline (after loading) and client-side. This means your personal photos, documents, and designs never leave your computer. It's the privacy-first alternative to cloud-based converters.
ICO vs BMP: Format Comparison
Understand the key differences between these formats.
| Feature | ICO | BMP |
|---|---|---|
| Full Name | ICO (Icon File Format) | BMP (Bitmap Image File) |
| Compression | PNG or BMP compressed | None (uncompressed) |
| Max Colors | 16.7 million (24-bit) + alpha | 16.7 million (24-bit) |
| Transparency | ✅ Yes | ❌ No |
| Animation | ❌ No | ❌ No |
| Typical Size | 1-100 KB | 1-50 MB for typical images |
| Best For | Website favicons, Windows application icons, toolbar icons | Windows application development, temporary processing, archival of uncompressed originals |
About ICO
ICO is a file format specifically designed for icons in Microsoft Windows. It can contain multiple image sizes and color depths within a single file, which allows Windows to display the appropriate icon size in different contexts.
Advantages
- Contains multiple sizes in one file
- Native favicon format for websites
- Supported by all web browsers as favicon
- Can include transparency
Limitations
- Limited to icon-sized images
- Primarily Windows-specific format
- Not suitable for general image use
- Complex multi-resolution structure
About BMP
BMP is an uncompressed raster image format native to Windows. It stores pixel data directly without compression, resulting in very large file sizes but perfect image fidelity. It is rarely used on the web.
Advantages
- No compression means zero quality loss
- Simple format, easy to process
- Native Windows support
- Fast to read and write
Limitations
- Extremely large file sizes
- No transparency support
- No animation support
- Not suitable for web use
- Inefficient storage
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