Pattern Maker Online

Use a free online pattern maker in Chrome — draw sewing pieces, nest on fabric, save to the cloud, and export PLT or DXF without installing desktop CAD.

Why use an online pattern maker with no download?

Desktop garment CAD is powerful, but install size, updates, and OS compatibility get in the way when you only need to draw a few pieces, nest them on fabric, and send a cut file to a plotter.

AISmartPDF Pattern Design (aismartpdf.com/pattern-design) runs entirely in Chrome on Windows, Mac, or Linux. You get a pattern editor, fabric nesting, cloud library, and PLT or DXF export — no installer and no paid subscription.

What you can do in the browser

Draw closed garment pieces with points and outlines on a CAD canvas.
Mirror, grade sizes, and photo-trace paper patterns from a flat photo.
Import or export DXF for handoff to other CAD workflows.
Pack pieces on your fabric roll width in Pattern Nesting.
Export PLT for plotters and many digital cutting tables.
Save projects to My patterns with a free confirmed account.

Step-by-step — start without installing software

Open https://aismartpdf.com/pattern-design in Chrome.
Choose Pattern Editor and create a named piece (front, sleeve, etc.).
Close the outline, tweak points, and mirror symmetric parts if needed.
Sign in with a confirmed email when you are ready to save or export.
Open Pattern Nesting, set fabric width and spacing, and pack the marker.
Export PLT (or DXF) when the layout is production-ready.

Online pattern maker vs desktop parametric CAD

Seamly2D and Valentina excel when every line is driven by body measurements and grading formulas — you download them once and work offline.

A browser pattern maker excels for draw → nest → cut workflows: sampling, small brands, students, and sewists who already have a block and want PLT without maintaining a heavy CAD install.

Many teams use both: parametric drafting on desktop, then DXF import, nesting, and PLT export in AISmartPDF.

Privacy and accounts

PDF and image tools on AISmartPDF process files locally in your browser. Pattern save and production export use a free account so each user's library stays separate on our servers.

Use Chrome on a trusted device, confirm your email once, and export PLT only when the nested marker looks correct on screen.

Frequently asked questions

Is the online pattern maker really free?

Yes. Pattern Editor and Pattern Nesting are free in Chrome with no ads. Saving and export require a free confirmed account.

Do I need to download an app or plugin?

No. Use current Chrome on desktop. There is no Windows or Mac installer for Pattern Design.

Can I replace Seamly2D with a browser tool?

Not for full parametric formula drafting. Browser CAD is best when you draw or import pieces and need nesting plus PLT export quickly.

What file formats can I export?

DXF from Pattern Editor and PLT from Pattern Nesting after you sign in with a confirmed email.