Convert ICNS to BMP on Mac
Convert ICNS files to BMP format on your Mac with Jollycat. Apple's icon format for macOS applications, containing multiple resolutions up to 1024x1024 for Retina displays. Note: transparent areas will be flattened since BMP doesn't support transparency. All processing runs locally on your Mac — no cloud processing and no uploads required for conversion.
ICNS vs BMP
| Property | ICNS | BMP |
|---|---|---|
| Type | lossless | lossless |
| Compression | PNG or JPEG 2000 embedded | Uncompressed or RLE |
| Transparency | Yes | No |
| Animation | No | No |
| Bit Depth | 8/32-bit | 1/4/8/24/32-bit |
| File Extension | .icns | .bmp |
| Key Advantage | macOS standard icon format | No compression artifacts |
How to Convert ICNS to BMP on Mac
Open your ICNS file
Drag and drop your .icns file onto the Jollycat icon in your macOS dock or menu bar. Jollycat instantly detects the format.
Select BMP format
Pick BMP from the list of output formats. Optionally adjust quality, resolution, or compression settings.
Convert and save
Click Convert and Jollycat processes the file instantly on your Mac. No uploads required, no waiting — everything runs locally on Apple Silicon.
When to Convert ICNS to BMP
BMP advantages
No compression artifacts. Simple format.
ICNS limitations
macOS-only format. Limited to icon use.
Common use cases
Legacy software compatibility, Uncompressed image storage, Windows clipboard.
ICNS to BMP Conversion Tips
ICNS supports transparency but BMP does not. Transparent areas will be filled with a solid background color.
BMP stores raw pixel data with minimal compression, making files typically 3-5x larger than PNG.
Frequently Asked Questions
Is the ICNS to BMP conversion free?
Jollycat is a one-time purchase for $9.99. Once purchased, you can convert ICNS to BMP and use all 1,650+ conversion paths with no limits.
Does converting ICNS to BMP require an internet connection?
No. Jollycat processes everything locally on your Mac. Your ICNS files never leave your device — all conversion happens offline using Apple Silicon.
Can I batch convert multiple ICNS files to BMP?
Yes. Drag multiple ICNS files onto Jollycat and convert them all to BMP at once. Batch processing is built in.
Ready to Convert ICNS to BMP?
Jollycat handles ICNS to BMP conversion and 1,650+ other format conversions. All offline on your Mac.
Get Jollycat for Mac