Convert JNX to PHM
Convert JNX images to PHM format, edit and optimize images online and free.
Drop Files Anywhere to Upload
The JNX file extension stands for "BirdsEye JNX Raster Map" and is used by Garmin devices like the Alpha 100 and Montana 650 for navigating terrain. It contains a large raster map divided into small tiles for optimized rendering and includes an encrypted unit ID for the specific Garmin device. JNX files are part of the BirdsEye subscription service, allowing fast map rendering and supporting up to 5000 tiles per level. However, they are device-specific and cannot be created from other raster maps.
The PHM file extension stands for Portable Float-map Image (16-bit half), a format used for storing high dynamic range (HDR) images with 16-bit half-precision floating-point values. This format is particularly useful in applications requiring precise color representation and extensive dynamic range, such as computer graphics, image processing, and scientific visualization. Originating from the Portable FloatMap (PFM) format, PHM was developed to provide a more efficient storage solution by utilizing half-precision floats, thereby reducing file size while maintaining significant detail and accuracy.
Start uploading a JNX image by clicking the Choose File button or drag & dropping your JNX file.
Check the file preview quickly and use JNX to PHM tools if you need to change the conversion settings.
After the convert is complete, click on the Download button to get your PHM image.
To change JNX format to PHM, upload your JNX file to proceed to the preview page. Use any available tools if you want to edit and manipulate your JNX file. Click on the convert button and wait for the convert to complete. Download the converted PHM file afterward.
Follow steps below if you have installed Vertopal CLI on your macOS system.
cd to JNX file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Windows system.
cd to JNX file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Linux system.
cd to JNX file location or include path to your input file.