Freedom report

Three barsScore 6.5

  • Free tierA free tier is on its own pricing page
  • Open codeNo open-source code on record
  • Runs widely3 of 6 device platforms
  • DocumentedPlans, terms and facts published

Seamly2D is free, open-source fashion design software for creating garment patterns. The site describes using previous designs as a starting point and working with size charts, made-to-measure information, and converted body scans. It lists apparel, costumes, athletic wear, pet gear, outdoor products, and upholstery as potential applications. Seamly describes a workflow from design through manufacturing for physical and digital products, and says its software brings together 2D, 3D, and Mixed Reality. A beta process described for 3DLOOK MOBILE TAILOR measurement data converts CSV files into Seamly measurement files by email. Downloads are offered for Windows, Linux, and MacOS, but the download page requests a name, email, operating system, and intended use before emailing a link. The site says Seamly Systems does not sell or share personal information it holds. A user forum is available for software discussions. Seamly2D is listed with 2D pattern making, size grading, and SVG export capabilities.

Who it is for

Seamly2D may suit fashion and product designers who need garment pattern tools for apparel, costumes, or other listed applications. It is available for Windows, Linux, and MacOS.

What is good

  • Free and open source.
  • Supports 2D pattern making and size grading.
  • Works with size charts and made-to-measure data.
  • SVG export is listed.

What to know first

  • Download requires submitting contact and intended-use details.
  • Download link is emailed rather than offered directly.

Verdict

Seamly2D offers free pattern-making software across several desktop systems, with sizing and SVG export capabilities. Users should expect to provide details and wait for an emailed download link.

Seamly2D plans and pricing

All plans
Seamly2D Free Free and open source seamly.io · 3 Oct 2026

Compared on fashion design software

Free plan
Yes
2D pattern making
Yes
Size grading
Yes
Export formats
SVG
Supported platforms
windows

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