JNX is a binary raster-tile container Garmin created for its BirdsEye satellite imagery service, supported on Oregon, GPSMAP, Montana and etrex handhelds. On osm2cdr the JNX is generated natively by our own Python writer: we render the chosen area into JPEG tiles via QGIS and pack them into a .jnx with a header, tile index and Garmin-format coordinates (int32). The file is marked device_id = 0 (all devices) and written with no DRM or expiry, unlike subscription BirdsEye files. To be honest: this is a single-zoom raster overlay — no routing or search, just a picture of your OSM map on top of the base map. The limit is 50,000 tiles per file.
OpenStreetMap data as of 26 October 2026 · 17 days ago
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เกี่ยวกับรูปแบบ Garmin JNX
JNX appeared as the container for BirdsEye, Garmin's paid satellite imagery service. The device shows such tiles on top of its own vector map: a raster underlay appears beneath the familiar streets. The format is supported by outdoor models — Oregon, GPSMAP, Montana, etrex.
A custom JNX is a way to show your own raster map on the device: a rendered OpenStreetMap style, a topographic base, a nature reserve scheme. It helps where the picture matters more than routing: trails, details, features that simply are not in the device's vector map.
The selected area is rendered into JPEG tiles at a single detail level and packed into a .jnx by our own writer: a header, a tile table, coordinates in Garmin's integer grid. The file is marked as "any device" and contains neither protection nor an expiry date, so it is not tied to a particular unit.
The limitations are honest: one zoom level, up to 50,000 tiles per file, no routing and no search. A large region is better split into several files.
โปรแกรมใดที่เปิดไฟล์ Garmin JNX ได้
โปรแกรมและแอปพลิเคชันต่อไปนี้สามารถเปิด แก้ไข และทำงานกับไฟล์ Garmin BirdsEye JNX Raster Tiles (.jnx) ที่ส่งออกจาก OSM2CDR ได้:
Format specifications
- Proprietary format
- 2D only
- Lossy compression
- No attributes
- Output: 1 file
- A Garmin JNX raster-tile container written natively in Python: JPEG tiles (quality 85) at a single zoom, device_id 0, no DRM, 50,000-tile limit.
ใครใช้แผนที่ Garmin JNX
วิธีส่งออก Garmin JNX
วิธีเปิดไฟล์หลังส่งออก
- A Garmin device — copy the file to the microSD or to internal memory, into the Garmin/BirdsEye/ folder; after a restart, enable the layer in the map settings.
- Check before you set off — open the maps menu on the device and make sure the layer is visible: some models show raster layers only at certain zoom levels.
- Garmin BaseCamp — will show the map on your computer if the device or its memory card is connected.
- Mapc2Mapc or GMapTool — viewing and converting .jnx on a computer, if you need to check the contents or break the file down into tiles.
- A large territory — export it in several pieces: when the limit of 50,000 tiles is exceeded, the tile list is truncated.
รับการส่งออกแผนที่ Garmin BirdsEye JNX Raster Tiles
ดาวน์โหลดแผนที่ Garmin JNX ระดับมืออาชีพจาก OpenStreetMap สร้างได้ทันที ครอบคลุมทุกพื้นที่