Free Online JNX to HEIC Converter

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.

HEIC is a file extension that Apple uses for the HEIF image format, which are usually coded by HEVC codec (High Efficiency Video Compression). This format is great for Live Photos because it can contain an image sequence. The best part about it is that you can store twice as many pictures in the HEIC format as in JPEG in the same size and quality because it uses the next-generation file compression.