Download and install the latest version of Filestar.
Right click on one or more Rast file(s) on your desktop and select Convert with Filestar.
Type convert to icns in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i photo.rast -c "convert to icns" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
Music
.rastContract.rast
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
ConvertMergeCompressExtractMoveZip
Let your AI agent convert RAST to ICNS
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 RAST files in my Downloads folder to ICNS”
Or run it yourself:
filestarcli -i photo.rast -c "convert to icns"
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 RAST to ICNS?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.rast -c "convert to icns" on your computer, so your files stay on it.
The Sun Rasterfile, identified by the extension .rast, is a bitmap image file format originally developed for use on SunOS by Sun Microsystems. It is designed to store color and monochromatic raster images, such as scanned photographs and digital artwork. The format supports various color depths, including 1, 8, 24, and 32 bits per pixel, allowing for a range of color representations from simple black and white to full true color images. Despite its origins on Sun systems, the format can be used on various platforms and is supported by a variety of image editing and viewing software.
It is an icon image file used to show application icons in the macOS Finder and macOS dock. It contains one or several .PNG images and it supports 1bit and 8-bit alpha channels.
