Free online DXF to DST converter

Embroidery machines and embroidery production software often require Tajima .dst files, while supplied artwork may be an engineering or CAD drawing in .dxf. The process converts geometry into a planned sequence of stitches; changing the filename does not create an embroidery design.

What DXF contains

DXF, Autodesk Drawing Exchange Format, is a CAD interchange format used by AutoCAD, DraftSight, LibreCAD, CAM software, laser-cutting systems, CNC workflows, and engineering applications. A DXF can contain lines, arcs, polylines, splines, blocks, layers, text, dimensions, hatches, 3D entities, and construction geometry.

CAD entities define shape and coordinates, not embroidery instructions. A DXF has no stitch density, stitch direction, underlay, pull compensation, thread sequence, trim plan, fabric setting, or hoop limit. Before digitizing, remove dimensions, title blocks, centerlines, hidden layers, duplicate paths, hatches, and any detail that is not intended to sew.

Check the drawing scale before import. DXF files may be unitless or may use units that differ from the intended embroidered size; define the finished design size in millimetres and verify it against a known drawing dimension.

What DST contains

DST is Tajima's widely supported machine-embroidery stitch format. It stores needle-movement records and control instructions used for stitching, jumps, and color-change or stop positions. It does not preserve editable vector objects, fabric settings, stitch-object parameters, or thread-brand color assignments.

DST is suitable for transferring a finished design to many commercial and domestic embroidery workflows, but it is a poor working format. Keep the original DXF and the digitizing software's native project file, then export a new DST after later edits.

File size and sew time depend mainly on stitch count, not on the size of the original CAD file. Dense fills, short stitch lengths, repeated travel, and excessive detail can produce a large DST and a slow sew-out.

Prepare the DXF

1. Open the file in a CAD editor such as AutoCAD, DraftSight, or LibreCAD, and isolate only the intended artwork.
2. Set or verify the physical size in millimetres. Scale the artwork before digitizing rather than resizing a completed DST.
3. Convert fragmented shapes into clean closed polylines where practical. Simplify excessive spline nodes, remove overlaps, close gaps, and delete extremely short segments.
4. Use separate layers or colors for intended thread areas. Separate outlines from filled regions so they can receive different stitch types.
5. Save a cleaned copy. If the embroidery application cannot import that DXF version, open it in LibreCAD or Inkscape and export clean .svg artwork for import.

Digitize and export the embroidery design

1. Import the cleaned artwork into embroidery digitizing software. Wilcom EmbroideryStudio and Embird Studio support professional digitizing workflows; Hatch Embroidery and Embrilliance StitchArtist are common desktop options. Confirm that the specific edition supports the DXF or SVG import method you plan to use.
2. For a no-cost workflow, import cleaned SVG artwork into Inkscape with the Ink/Stitch extension, digitize the objects, and export DST. Ink/Stitch does not turn CAD geometry into production-ready stitches automatically.
3. Set the target hoop and finished dimensions. Leave a practical margin inside the machine's sewable field, not merely the nominal hoop size.
4. Create embroidery objects from the artwork: use running stitches for fine outlines, satin columns for narrow borders and lettering, and fill or tatami stitches for larger areas.
5. Set stitch direction, density, underlay, pull compensation, start and end points, trims, and sewing order for the actual fabric, backing, needle, and thread. Knitwear, caps, woven twill, and patches require different settings.
6. Run stitch simulation and inspect for long jumps, unnecessary trims, exposed underlay, thread buildup, thin satin columns, and objects outside the hoop.
7. Save the editable project in its native format, then use File → Export or File → Save As and select Tajima DST. Export a file such as logo.dst.
8. Open the DST in the machine software or controller, verify the displayed dimensions and color-change count, and sew a test on the final material and stabilizer.

Quality and compatibility limits

Do not rename drawing.dxf to drawing.dst. The formats use unrelated data structures, and the result will not be a sewable embroidery file.

DST stores relative movements at 0.1 mm increments and has a limited movement range per stitch record. Digitizing software normally splits long moves, but poor travel planning still adds stitches, slows production, and increases the chance of thread breaks or visible connecting threads.

Fine CAD detail often cannot be reproduced in thread. Small gaps can close through pull-in, narrow shapes may not support satin stitches, and sharp corners can create dense thread buildup. Simplify artwork and adjust stitch settings for the intended size instead of expecting the DXF outline to sew exactly.

DST carries color-change positions but not reliable thread colors or thread-chart assignments. Assign the required thread colors in the machine software or keep a separate production worksheet.

Browser-based DXF-to-DST converters can create a quick test file, but they cannot reliably select stitch types, density, underlay, compensation, or fabric-specific sequencing. For production work, use desktop digitizing software or an established embroidery digitizing service that provides a proof and test sew-out.

Do not confuse Tajima DST with AutoCAD sheet sets

AutoCAD also uses .dst for Sheet Set Data files. That file is a sheet-set database containing references and publishing information; it is not a Tajima embroidery design and cannot be created by converting drawing geometry directly. If a recipient requests a DST for an embroidery machine, they mean Tajima DST; if they request an AutoCAD sheet set, create and manage it in AutoCAD from the relevant drawing layouts.