free · in-browser · no upload
Drop your DST file. We'll convert it to PES right here in your browser, your file never leaves your device.
Select your file here to get started
or drop your file here.
Accepts .dst
How it works
Click the dropzone above or drag a DST from your desktop. Files of any size, there's no upload, so there's no upload limit.
The conversion runs entirely in this tab using JavaScript and WebAssembly. Your file never touches our servers, we don't have any.
Get your PES the moment the conversion finishes. Convert another, or close the tab.
Your file is never uploaded. The entire conversion runs in your browser using WebAssembly. We can't see what you convert because we have no server to see it.
Server converters cap free users at 1-2 GB and gate larger files behind a paid plan. Since nothing uploads, our limit is whatever your browser can handle.
No account required. No watermark on the output. No queue. Drop a file, get a converted file.
Why convert DST → PES (Brother)
Tajima DST is the embroidery industry's universal stitch format, but Brother home machines (PE-Design, Innov-is, Pacesetter) read PES natively. Converting DST → PES lets you take a design from a commercial digitizer or industrial machine and run it on a home Brother without re-digitizing.
You bought an embroidery design pack online, every file is .dst because the digitizer used Wilcom or Pulse. Your Brother SE600 needs .pes. Drop each .dst here, get a .pes back with the same stitches, color stops, and trims preserved. Load it onto a USB stick and embroider.
Colors look wrong on the machine display.
DST has no color information, it stores 'color change' commands but not the actual thread color. Our PES output assigns generic Brother thread codes; you'll see the design with placeholder colors and need to pick threads visually as you stitch. This is true of every DST→PES conversion, not specific to us.
The hoop size says it doesn't fit but the design looks small.
PES embeds a hoop size hint that your machine uses to pre-validate. We default to 4×4 (100×100mm). If your design needs a larger hoop, edit it in PE-Design or your machine's editor to set the correct hoop after conversion.
Trims/jumps are showing as visible threads on the finished embroidery.
DST sometimes records jumps without explicit trim commands. We translate them as PES trims when the jump is over 7mm (the embroidery industry standard for trim-or-not). Shorter jumps remain as floating threads, clip them by hand after stitching, or pre-process the DST in your digitizer to mark trims explicitly.
Formats involved
DST is Tajima's industrial embroidery file format and the most universally-supported design format on commercial machines. 512-byte header followed by 3-byte stitch records. Brother, Janome, Bernina, Singer, Husqvarna Viking, all read DST as a fallback even when their native format is different.
How to open
Every commercial embroidery machine. Free viewers: Embird (paid), Embroidermodder (free), online embroidery viewers like StitchView.
PES is Brother's native embroidery format, also used by Babylock and Bernina-XJ machines. The file embeds a PEC subsection containing the actual stitch data. PES is the format most embroidery design marketplaces (Etsy, Embroidery Library) ship with by default because Brother dominates the home/hobbyist market.
How to open
Brother and Babylock home machines (PE Design software, Brother Embroidery Box). Free: Embroidermodder, online PES viewers.
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FAQ
Yes. No signup, no watermark, no daily file count limit. Every conversion runs in your browser, your file never touches our servers because there are no servers.
Nowhere. The conversion runs entirely in your browser using JavaScript and WebAssembly. Your file is never uploaded to our servers. We don't have any servers handling files, there's nothing for us to log, store, or accidentally leak.
Whatever your browser can hold in memory. Practically, this means a few hundred MB on most computers, significantly larger than the 1-2 GB caps that server-upload converters charge for. Very large files (multi-GB) may require closing other browser tabs first.
Universal embroidery design interchange. Brother home embroidery machine designs. The most common reason to convert is compatibility, PES works in places where DST doesn't, or vice versa.
Every commercial embroidery machine. Free viewers: Embird (paid), Embroidermodder (free), online embroidery viewers like StitchView.
Once the page is loaded, the conversion itself runs entirely offline. The first time you use a tool, your browser downloads the conversion library (a one-time cache). If you reload while offline, the page won't load, but you can install the site as a Progressive Web App for full offline use.
Single file at a time for now. Batch conversion is on the roadmap, for now, drop one file, download the result, then convert the next.
