PES JEF
File conversion

Convert PES to JEF

QUICK ANSWER
Is it possible to convert PES to JEF?
Yes - PES converts to JEF.

Open the .pes file in Wilcom TrueSizer (free) and save as .jef. Stitch coordinates transfer without loss, but thread colors remap to Janome's palette - verify the color sequence after converting.

5 programs
Also to JEF: XXX · CSD · EXP

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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Why convert PES to JEF?

JEF is the native format for Janome embroidery machines, which cannot read .pes files. Anyone who buys or receives a Brother-format design and wants to sew it on a Janome must convert first. Both formats store stitch coordinates, jump and trim commands, and color-change stops, so the conversion is a palette remapping rather than a reconstruction.

How to convert PES to JEF

Wilcom TrueSizer FREE

Open the .pes file via File > Open, then go to File > Save As and select .jef. The free desktop version handles PES versions v1 through v11.

Embird Embroidery Software APP

Open the .pes file and use File > Save As, selecting JEF format. Embird remaps thread colors to a Janome-compatible palette automatically.

SewWhat-Pro APP

Open the .pes file, choose File > Save As, and pick JEF. Review the color list before saving and adjust any thread assignments that look off.

Programs that convert PES

About these formats

Quality & what to watch

  • Thread colors remap to Janome's palette during conversion - the nearest match is chosen automatically, but exact thread codes will differ from the original PES color list.
  • Stitch coordinates, jumps, trims, and color-change stops all transfer without loss; the sewn design will match the original geometry.
  • Before converting, confirm the design fits your Janome hoop - the file stores dimensions in millimeters, and resizing is easier before export than after.

Frequently asked questions

Can a Janome machine read a PES file directly?
No. Janome machines use JEF format - the .pes file must be converted before copying it to the machine.
Does the PES version (v1-v11) affect the JEF output?
No. Embroidery software reads all PES versions and the output JEF is not affected by which version you started with.
Will the converted JEF look the same as the original design?
The stitch path is identical, but thread color assignments may differ slightly because PES and JEF use different thread chart palettes.
Is Wilcom TrueSizer really free for this conversion?
Yes. TrueSizer's free tier includes format conversion between PES and JEF without any paid upgrade.