Download and install the latest version of Filestar.
Right click on one or more Gn 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 photo.gn -c "convert to webp" (how).
Documents - File Explorer─☐✕
This PC › Documents
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.gnContract.gn
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert GN 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 GN files in my Downloads folder to WEBP”
Or run it yourself:
filestarcli -i photo.gn -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 GN to WEBP?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.gn -c "convert to webp" on your computer, so your files stay on it.
The GN file type, associated with Apollo HDRU (High Dynamic Range Utility), is a proprietary format used for storing and processing high dynamic range images. These files are specifically designed to retain a wide range of luminosity levels, allowing for more detailed and realistic representations of scenes with significant contrasts in brightness. The Apollo HDRU software leverages the GN format to enable advanced editing, tone mapping, and rendering capabilities that enhance the visual quality of images without losing detail in both shadow and light areas. This makes GN files particularly valuable for professional photographers, graphic designers, and any visual media creators seeking to achieve the highest quality in digital imaging.
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.
