Download and install the latest version of Filestar.
Right click on one or more St5 file(s) on your desktop and select Convert with Filestar.
Type convert to webp in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.st5 -c "convert to webp" (how).
Documents - File Explorer─☐✕
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.st5Contract.st5
.xlsxBudget.xlsx
.pdfReport.pdf
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Drop files here to get started
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Let your AI agent convert ST5 to WEBP
Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine. It works on Windows, macOS only.
“Convert the ST5 files in my Downloads folder to WEBP”
Or run it yourself:
filestarcli -i file.st5 -c "convert to webp"
Runs on your computer, so your files stay on it. Works on Windows and macOS. 50 free conversions with the npm install, no account needed.
Can my AI agent convert ST5 to WEBP?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.st5 -c "convert to webp" on your computer, so your files stay on it.
The ST5 file type is specifically associated with images captured using SBIG CCD cameras, particularly the ST-X series models. These files contain raw, unprocessed image data directly from the camera's charge-coupled device (CCD), which is sensitive to light. The format is designed to preserve the maximum amount of image information, allowing astronomers and astrophotographers to perform detailed post-processing. The ST5 format is commonly used in astrophotography and astronomical research, where high precision and image fidelity are crucial.
A WEBP file is an image saved in the WebP (pronounced "Weppy") raster image format developed by Google for web graphics. It is designed to reduce image file sizes over standard JPEG compression while maintaining the same or similar quality. WEBP files allow images to be downloaded more quickly.
