Download and install the latest version of Filestar.
Right click on one or more Jnx file(s) on your desktop and select Convert with Filestar.
Type convert to ppm in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i photo.jnx -c "convert to ppm" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
Music
.jnxContract.jnx
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert JNX to PPM
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 JNX files in my Downloads folder to PPM”
Or run it yourself:
filestarcli -i photo.jnx -c "convert to ppm"
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 JNX to PPM?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.jnx -c "convert to ppm" on your computer, so your files stay on it.
JNX is a raster image file format used by Garmin devices. It stores satellite map images seen through a BirdsEye subscription. This satellite maps are divided into smaller tiles for faster loading when displaying them. Hence, the name tile format.
A PPM file is a 24-bit color image formatted using a text format. It stores each pixel with a number from 0 to 65536, which specifies the color of the pixel. PPM files also store the image height and width, whitespace data, and the maximum color value.
