A DST file is a machine embroidery design in the format used by commercial and industrial machines. It is the oldest format still in everyday use, and it has one characteristic that surprises people: it carries no color information at all.
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Where DST comes from
DST was created for Tajima commercial machines and became the format the whole commercial industry settled on. If you send a design to a contract embroidery shop, DST is almost certainly what they will ask for.
Because it is so widely accepted, DST is the closest thing embroidery has to a universal format. Most machines read it, including many home machines.
The no-colors thing
A DST file stores where the needle goes and where it stops to change thread. It does not store which color goes in which position.
So when you open a DST, the software picks colors for you — often garish ones. People assume the file is damaged. It is not. The information was never in there.
On a commercial machine this does not matter, because the operator is told which thread goes where on a job sheet. At home it means you set the colors yourself before you stitch.
Got a DST file you can’t open?
That’s exactly what Unzip2Stitch is for — it opens any DST, shows your design on screen, lets you set the colors the file doesn’t carry, and organizes every embroidery file you own in one place. See how Unzip2Stitch opens your files →
When you actually want a DST
- Sending work to a commercial embroiderer. Ask them, but it will usually be DST.
- Your machine will not read anything else in the folder. DST is widely supported and makes a good fallback.
- You are archiving. DST has been readable for decades and is likely to stay that way.
When you do not
If you have a home machine and the design came with a format made for it — PES for Brother, JEF for Janome, VP3 for Husqvarna and Pfaff — use that one. You keep the colors the digitizer chose, and that is worth having.
DST and hats
One practical note. Commercial work, especially on caps, often runs from DST, and those designs are frequently digitized to stitch from the center outward for cap frames. If you stitch a cap design flat it may still look fine, but the underlay was planned for a curved surface.
Converting to and from DST
Converting into DST is straightforward — you are discarding color data, and the stitches survive intact.
Converting out of DST into something else works too, but the colors cannot come back, because they were never stored. Expect to recolor.
Finding the DST in among everything else
Most purchased designs arrive as a zip holding the same design in six or eight formats. Finding the one you want means opening the zip and recognizing the extension, every time.
Unzip2Stitch catalogs what you already own and shows which formats each design includes, so you can see at a glance whether the DST is in there. It looks inside zips without unpacking them, and it never moves your files.
See also embroidery file formats explained and PES files explained.
DST and EXP are not the same
They get mentioned together because both are stripped-down stitch formats, but they come from different machines. DST comes from Tajima, EXP from Melco and Bernina. Both carry stitches without much else.
If a commercial shop asks for one, give them exactly the one they asked for rather than the one you have.
What a DST does and does not hold
| Holds | Stitch coordinates, jumps, trims, and the stops where a color change happens |
| Does not hold | Which color goes where, thread brand, design name, hoop information |
So a DST knows there are five color changes. It does not know that the third one was meant to be gold.
Why commercial shops insist on it
A commercial embroidery machine runs from a job sheet. The operator is told which cone goes on which needle, so color data inside the file is redundant — and a format that carries nothing extra is a format that cannot go wrong.
DST has also been readable for decades on essentially every commercial machine ever built. In a shop running work from a hundred different customers, that reliability is worth more than convenience.
Sending a logo out to be stitched
If you are having work done by a commercial embroiderer, a few things save everyone time.
- Ask which format and which hoop or frame size before you send anything.
- Send the thread colors separately, in writing, because the DST will not carry them. Brand and number if you have it.
- Say what it is going on. The same logo is digitized differently for a cap, a polo and a towel.
- Send the original artwork too if you have it, not just the stitch file.
If the logo has never been digitized at all, that is a separate job — see custom embroidery digitizing.
Caps are digitized differently
Commercial work on caps usually stitches from the center outward, because a cap frame holds a curved surface under tension. A design built for a cap can be stitched flat and will often look acceptable, but the underlay and sequence were planned for a curve.
Going the other way — a flat design on a cap — is where things go wrong, with registration drifting as the fabric moves.
Common questions
Will a DST file work on my home machine?
Many home machines read DST, and it is a useful fallback when nothing else in the folder suits. You will have to set the thread colors yourself, because the file does not carry any.
Why are the colors wrong when I open a DST?
They are not wrong, they are invented. DST stores no color information at all, so whatever software you opened it in has chosen colors for the stops. Set them to what you want before stitching.
Can I convert DST to PES?
Yes, and the stitches will come across intact. The colors will not, because they were never in the file. Expect to recolor afterwards.
Is DST better quality than PES?
Neither is better. They are containers. The quality lives in how well the design was digitized, not which format it was saved in.
Why does my DST have so many jump stitches?
Jumps are the needle traveling between parts of a design without stitching. A well digitized file minimizes them. A lot of jumps usually means the design was auto-converted from artwork rather than digitized properly.
