Convert jnx to miff

  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 miff in the search box.

  4. Press Convert.

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

Let your AI agent convert JNX to MIFF

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 MIFF”

Or run it yourself:

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

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 MIFF?

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

Using Filestar With AI Agents → · Download SKILL.md

What is the difference between .jnx and .miff?

Extension
.jnx
.miff
Format
Binary
Binary
Category
Raster Image
Raster Image
Developer
Garmin
ImageMagick
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 MIFF (Magick Image File Format) is a versatile image format used primarily by ImageMagick, a software suite for creating, editing, converting, and displaying bitmap images. It is designed to store bitmap images with a high degree of flexibility, supporting various depths and color spaces, including transparency and multiple layers. MIFF files are often used for temporary storage during image processing tasks, as they can efficiently preserve the full quality and attributes of images.
MIME Type
application/x-jnx
image/x-miff

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