Download and install the latest version of Filestar.
Right click on one or more Ico file(s) on your desktop and select Convert with Filestar.
Type convert to bm in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i photo.ico -c "convert to bm" (how).
Pictures - File Explorer─☐✕
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.icoMarket.ico
.heicBeach.heic
.pdfReceipt.pdf
.docxNotes.docx
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert ICO to BM
Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.
Install Filestar and add it to your agents:
npm install -g filestar
filestarcli agent install
Then ask your agent:
“Convert the ICO files in my Downloads folder to BM”
Or run it yourself:
filestarcli -i photo.ico -c "convert to bm"
Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.
Can my AI agent convert ICO to BM?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.ico -c "convert to bm" on your computer, so your files stay on it.
An ICO file is an image format used to store icons for Windows programs, files, and folders. It contains two bitmaps: 1) the AND bitmap - the image mask (which determines what part of the icon is transparent) and 2) the XOR bitmap - contains the icon which is mapped onto the image mask. ICO files can be modified to create custom icons.
The BM file type, associated with X11 Bitmap, is a monochrome bitmap image format used on the X Window System, which is commonly found on Unix and Unix-like operating systems. It stores black-and-white images in a plain text format, where each pixel is represented as either on (black) or off (white). These files are often used for simple icons and cursors within the X11 graphical user interface. Due to its simplicity and text-based nature, BM files can be easily edited with standard text editors.
