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Why convert JNX to G4?
Fast
Your file is converted in under 30 seconds in our cloud.
Secure
Files are automatically deleted after 1 hour.
Quality preserved
Maximum quality preserved during conversion.
About the JNX format
JNX — Garmin Tile Map Image
JNX is a proprietary raster tile map format used by Garmin GPS devices to store third-party background maps. JNX files contain georeferenced image tiles at multiple zoom levels and are used by BirdsEye satellite imagery and other Garmin-compatible map providers.
Common uses
- Loading third-party satellite maps on Garmin GPS devices
- Garmin BirdsEye map tile distribution
- Converting JNX map tiles for analysis
- Georeferenced raster map archiving
About the G4 format
G4 — CCITT Group 4 FAX
G4 is the more advanced monochrome fax compression format defined by ITU-T for Group 4 fax machines and TIFF storage. Using Modified Modified READ (MMR) compression, it achieves significantly better compression than G3 and is the standard for TIFF-based document archiving.
Common uses
- High-compression document fax archiving
- TIFF G4 document scanning for records management
- Legal and government document storage
- Converting G4 fax archives to PDF
Related conversions
Other conversions available for JNX and G4 files
Frequently asked questions
Is the conversion free?
Yes, basic conversion is completely free. For large volumes, check out our paid plans.
What is the maximum file size?
Free accounts can convert files up to 25 MB. Pro accounts up to 100 MB.
How long are my files kept?
Files are automatically deleted after 1 hour on the free plan, 24 hours on Pro.
What formats are supported?
We support over 200 source and target formats. See our complete formats page.