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 avcs in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i photo.ico -c "convert to avcs" (how).
Pictures - File Explorer─☐✕
This PC › Pictures
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Desktop
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Pictures
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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 AVCS
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 AVCS”
Or run it yourself:
filestarcli -i photo.ico -c "convert to avcs"
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 AVCS?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.ico -c "convert to avcs" 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.
An image sequence stored in a HEIF container with the frames coded as AVC (H.264) instead of HEVC, under the 'avcs' brand of the AVC Image File Format. Converting extracts the first frame.
