Optimise jef for my machine

Download and install the latest version of Filestar.
Right click on one or more Jef file(s) on your desktop and select Convert with Filestar.
Type optimise for my machine in the search box.
Press Run.

Or let an AI agent do it: filestarcli -i file.jef -c "optimise for my machine" (how).

Let your AI agent optimise JEF for my machine

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:

“Use Filestar to optimise JEF for my machine in my Downloads folder”

Or run it yourself:

filestarcli -i file.jef -c "optimise for my machine"

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 optimise JEF for my machine?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.jef -c "optimise for my machine" on your computer, so your files stay on it.

Using Filestar With AI Agents · Download SKILL.md

What is .jef?

Name: Janome Embroidery Format
Extension: .jef
Category: Embroidery
Developer: Janome
Description: Embroidery format used by Janome sewing machines; contains stitching patterns and sewing instructions for creating embroideries; native format used by Janome sewing software, but also recognized by Embrid Suite.
MIME Type: application/x-jef
Sample: sample.jef

Embroidery

Machines that use JEF: Janome · Elna

What a conversion keeps

Stitches: Every stitch is kept at its exact position. Nothing is re-digitised.
Colours: Kept when the target stores them. DST stores no colours, only where each colour changes, so your machine asks for the threads.
Trims, jumps and stops: Kept, and written the way the target machine expects them.
Objects and lettering: Design programs keep shapes and text as objects. A machine file only holds stitches, so objects become stitches.

All Embroidery Formats and Machines

Our own design in this format, as Filestar draws it.

Optimise Jef For My Machine Today

Get started within minutes

Download