At a glance
- Made by
- Wilcom EmbroideryStudio and Hatch Embroidery, Wilcom's home software
- File type
- Design file, also called an outline or all-in-one file, not a machine file
- Inside
- Digitized shapes and lines with their stitch types, stitch values and effects
- Sewable
- No: export a machine format such as DST, PES, JEF or VP3 first
- Free tools
- Can't read EMB reliably; Embrilliance Essentials reads it, Hatch reads and writes it
- On Embroidly
- Explained here only: our tools can't open EMB, and our downloads are machine files
Design files and machine files
Hatch's documentation draws the line clearly. Machine files, also called stitch files, "generally contain stitches and machine functions and are only suited to specific embroidery machines." Design files, also called outline or all-in-one files, "usually contain digitized shapes and lines, selected stitch types and stitch values and effects." EMB belongs to the second group: Hatch lists it as the "Wilcom 'all-in-one' design file".
The difference matters in practice:
| EMB (design file) | PES, DST, JEF… (machine files) | |
|---|---|---|
| Contains | Objects: shapes, lines, stitch types and settings | Stitches, jumps, trims and colour changes |
| Editing | Resize, restyle and re-letter properly | Only small changes; resizing stretches stitches |
| Sewable | No | Yes, on the machines that read the format |
| Who keeps it | The digitizer | You, the embroiderer |
That is why a digitizer keeps the EMB and sends you a machine file. When a design needs a new size, a different fabric or another name, they edit the objects and export again, and the stitches are recalculated rather than stretched. Our guide to resizing shows what stretching a machine file does.
How to get a machine file from an EMB
- With Wilcom or Hatch software: open the EMB and export the format your machine reads. Hatch reads and writes the current EMB format and every common home machine format.
- Without the software: ask the person who sent the EMB for a machine file. Digitizers deliver DST, PES and similar files as a matter of course.
- With other paid software: some programs, such as Embrilliance Essentials, can read EMB files. Check the software's format list before you rely on it.
There is no free shortcut. The open-source library behind most free converters, ours included, has no reader for EMB, which is why you won't find an "EMB to DST" tool on our site.
Machines and EMB
Embroidery machines don't sew EMB files. What the machine needs is in the formats overview: PES for Brother and Baby Lock, JEF for Janome and Elna, EXP for BERNINA, VP3 for Husqvarna Viking and Pfaff, XXX or VP3 for Singer, and DST for most commercial machines. The file formats guide has the brand-by-brand table.
EMB and Embroidly
Our library is built with our own digitizer, so we don't use EMB files, and our viewer and converter can't open them. Every design comes as finished machine files in PES, DST, JEF, EXP, VP3, XXX, U01 and PEC, each digitized natively at three sizes.
Convert EMB files
EMB can't be converted by free tools: open the file in the software that made it and export a machine format such as PES, DST or EXP.
Frequently asked questions
How do I convert an EMB file to DST or PES?
Why won't free converters open my EMB file?
Can I sew an EMB file directly?
Why do digitizers keep EMB files?
Sources
- Embroidery files (machine files and design files), Hatch Embroidery (Wilcom) (accessed Oct 3, 2026)
- Supported embroidery files, Hatch Embroidery (Wilcom) (accessed Oct 3, 2026)
- Supported design file formats, Wilcom EmbroideryStudio (accessed Oct 3, 2026)
- Embrilliance Essentials, Embrilliance (accessed Oct 2, 2026)
- pyembroidery (supported formats), EmbroidePy (open source) (accessed Oct 3, 2026)