JNX to MAP Converter

Convert JNX to MAP online quickly and easily. Just upload your file, convert it, and download the MAP in seconds.

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What is JNX ?

JNX is used by Garmin devices for storing files to display satellite maps available through a BirdsEye subscription. JNX is the so-called tile format which means that a large raster image of the map is divided into smaller rectangular pieces for faster display by the navigator.

JNX format  ▶

What is MAP ?

MAP is ImageMagick's colormap format: a palette of colours followed by one index per pixel that says which palette entry to draw. The file has no header, so the image width and height are not stored in it. It is an output format for indexed-colour work such as embedded displays, retro graphics and custom image pipelines.

MAP format  ▶

How to Convert JNX to MAP in Just a Few Steps

  1. Upload your JNX file
    Drag and drop your JNX file, click 'Select Files' to upload from your device, or import directly from Dropbox, Google Drive, OneDrive, or paste a URL.
  2. Choose MAP as output format
    The converter is preset to MAP, but you can select any other output format before converting.
  3. Adjust settings (optional)
    If you like, tweak output options such as resolution, quality, or compression before converting.
  4. Convert the file
    Click the 'Convert' button. The conversion takes only a few seconds.
  5. Download your converted file
    Download the converted file to your device, or save it directly to Google Drive, Dropbox, or OneDrive.

Why Convert JNX to MAP file?

JNX is Garmin's tiled format for BirdsEye satellite imagery, written for the handheld rather than for a computer. MAP, despite the name, is not another map format: it is ImageMagick's colormap format, a palette of colours followed by one index per pixel, used for indexed-colour work such as small displays and custom graphics pipelines. Converting JNX to MAP turns the imagery into that palette-and-indices form.

Two things change on the way. The geographic information does not survive — MAP stores pixels and colours, not coordinates — so the result is a picture of the area rather than something a mapping program or GPS can position. And satellite imagery is full of subtle colour, which has to be squeezed into a limited palette, so expect visible banding in fields, water and sky. MAP files also carry no header, so note the image dimensions; whatever reads the file back has to be given them. If you want a viewable image of the imagery, PNG or TIFF keep far more of it.

Start converting JNX to MAP now — it’s fast, safe, and completely online!

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