Convert ICNS to BMP
Convert ICNS to BMP online: the largest icon in the set decoded at its native size, saved as an uncompressed BMP bitmap. Free, no sign-up.
Drop your ICNS files here
Up to 50MB per file.
Conversion Settings
Files are encrypted and auto-deleted after conversion
How to Convert
- 101
Upload your ICNS files
Drag and drop or select ICNS files from your device. You can upload multiple files at once.
- 202
Configure Output
Choose any available BMP output options, then start the conversion.
- 303
Download BMP files
Once conversion finishes, download your files individually or as a compressed ZIP archive.
Why convert ICNS to BMP?
ICNS is Apple's icon container for macOS apps, folders and documents, bundling the same icon at several sizes from 16 up to 1024 pixels. The converter picks the largest icon stored in the file, including Retina @2x versions, and renders that single image at its native size.
BMP stores every pixel uncompressed, so the image is exact and simple to read by any software that handles Windows bitmaps.
Frequently Asked Questions
How do I convert ICNS to BMP?
Drop your ICNS file above and press Convert. Our servers read every icon element in the ICNS file, decode the largest one to PNG, then encode it in the format you chose. The result is saved as an uncompressed BMP bitmap, ready to download.
Which icon size from the ICNS set is used for the BMP?
The largest one in the file. A modern ICNS usually holds a 1024 × 1024 Retina icon, and that is the image the BMP is made from.
Can classic ICNS icons without PNG data become a BMP?
Yes. Alongside PNG and JPEG 2000 icon elements, the decoder reads the classic packed RGB icons at 16, 32, 48 and 128 pixels together with their 8-bit transparency masks.
How big is the BMP image from a ICNS file?
The largest image stored in the icon set is used, so the BMP is as detailed as the icon allows.
What kind of BMP does the ICNS converter create?
A standard Windows bitmap with every pixel stored uncompressed, so the image is an exact copy of the rendered result.
Is my .icns file kept private?
Your file is uploaded over an encrypted connection, converted on our servers and deleted automatically within 24 hours. We never read, share or keep your files, and no account is needed.