JEF to EXP Converter
Convert JEF embroidery files (Janome & Elna) to EXP (Bernina & Melco) online — upload, preview the stitch-out free, and download a machine-ready EXP file.
Drop an embroidery file here, or click to browse
Supports JEF, DST, PES, EXP, XXX, SEW · up to 15MB
Got an image (PNG, JPG, SVG… up to 10MB)? Drop it here and we'll open it in the Image to Embroidery converter for you.
Why convert JEF to EXP?
JEF is the Janome Embroidery Format, read by Janome Memory Craft and Skyline series machines, plus Elna eXpressive models. Convert to EXP when your Bernina or Melco machine expects EXP. SewFlow re-encodes your existing stitches for the new format — it never re-digitizes, so the design sews out identically.
What happens to thread colours
EXP files don't store thread colours — the format stores raw stitch data with no thread-colour table. Your stitch order and every colour stop are preserved exactly; you assign the actual thread colours at the machine, matching the free preview shown before you convert.
How to convert JEF to EXP
- 1
Upload your JEF file
Drag and drop the .jef file (up to 15 MB). SewFlow decodes it and shows an animated stitch-out preview with size, stitch count, and thread colours.
- 2
Check the preview
Watch the design sew out stitch-by-stitch exactly as your machine will run it, and review the thread colour chips.
- 3
Download as EXP
EXP is preselected as the target — click Convert and the .exp file downloads instantly. Load via USB. EXP carries stitches and colour stops only, so you set the actual thread colours on the machine.
Frequently asked questions
Will my design stitch out the same after converting JEF to EXP?
Yes. SewFlow re-encodes the same stitches rather than re-digitizing: stitch paths, jump and trim commands, and colour stops are preserved exactly, so the EXP file sews out identically to the original JEF design.
Which machines read EXP files?
EXP (Melco Expanded format) is read by Bernina home machines and Melco commercial embroidery machines. Load via USB. EXP carries stitches and colour stops only, so you set the actual thread colours on the machine.
What happens to thread colours when converting JEF to EXP?
EXP files don't store thread colours — the format stores raw stitch data with no thread-colour table. Your stitch order and every colour stop are preserved exactly; you assign the actual thread colours at the machine, matching the free preview shown before you convert.
Is the JEF to EXP converter free?
Uploading and previewing is free with no account. To download the converted file, create a free account — you get 1 free download every month, with affordable plans when you need more.