Convert jnx to otb

  1. Download and install the latest version of Filestar.

  2. Right click on one or more Jnx file(s) on your desktop and select Convert with Filestar.

  3. Type convert to otb in the search box.

  4. Press Convert.

  5. Or let an AI agent do it: filestarcli -i photo.jnx -c "convert to otb" (how).

Let your AI agent convert JNX to OTB

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 OTB”

Or run it yourself:

filestarcli -i photo.jnx -c "convert to otb"

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 OTB?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.jnx -c "convert to otb" on your computer, so your files stay on it.

Using Filestar With AI Agents → · Download SKILL.md

What is the difference between .jnx and .otb?

Extension
.jnx
.otb
Format
Binary
Binary
Category
Raster Image
Raster Image
Developer
Garmin
Nokia
Description
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.
The OTB (Nokia Over The Air Bitmap Image) file format is a type of image file developed for use on Nokia mobile devices. These files are specifically optimized for efficient transmission and display on Nokia phones, particularly older models. The OTB format is designed to be compact to facilitate over-the-air (OTA) transmission, which was an essential feature in the era of limited bandwidth and data transfer capabilities. The format supports monochrome graphics, making it suitable for simple images like icons and logos.
MIME Type
application/x-jnx
image/x-up-bitmap

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