Convert jnx to avif

Download and install the latest version of Filestar.
Right click on one or more Jnx file(s) on your desktop and select Convert with Filestar.
Type convert to avif in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i photo.jnx -c "convert to avif" (how).

Let your AI agent convert JNX to AVIF

Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.

Install Filestar and add it to your agents:

npm install -g filestar
filestarcli agent install

Or add it in one click:

Claude Code:

claude mcp add filestar -- npx -y [email protected] mcp

Then ask your agent:

“Convert the JNX files in my Downloads folder to AVIF”

Or run it yourself:

filestarcli -i photo.jnx -c "convert to avif"

Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.

Can my AI agent convert JNX to AVIF?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.jnx -c "convert to avif" on your computer, so your files stay on it.

Using Filestar With AI Agents → · Download SKILL.md

What is the difference between .jnx and .avif?

Name: Garmin Tile Format; AV1 Image File Format
Extension: .jnx; .avif
Format: Binary; Binary
Category: Raster Image; Raster Image
Developer: Garmin; AOMedia
Description: JNX is a raster image file format used by Garmin devices. It stores satellite map images seen through a BirdsEye subscription. This satellite maps are divided into smaller tiles for faster loading when displaying them. Hence, the name tile format.; It is an image compression codec file with the same quality as .jpeg, but that is ten smaller. It supports HDR (High Dynamic Range). SDR (Standard Dynamic Range), and WCG (Wide Color Gamut) images. Also, it contains both the image sequences and image items. The only pitfall is that a few applications support it.
MIME Type: application/x-jnx; image/avif
Sample: sample.avif
Wikipedia: .avif on Wikipedia

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