Design & Adapt Sewing Patterns
on Your Desktop
A pattern repository, parametric design with FreeSewing, and visual drawing and grading—all in one desktop app.
Free and open source. Your patterns stay on your machine—no subscriptions, no lock-in.
What is PatternSoft?
PatternSoft is a desktop app for designing and adapting sewing patterns: a local pattern repository, parametric design with FreeSewing, and visual drawing and grading in one place.
Built with Tauri and React, it runs on Windows, macOS, and Linux. Your patterns and data stay on your machine. Download a release or get the source on GitHub.
Desktop app
Runs on your machine
Parametric
FreeSewing designs
Visual drawing
Draw & grade patterns
Open source
MIT license
Key Features
Pattern repository, parametric design, visual grading, and export—all in one place.
Pattern repository
Local library of patterns with metadata, search, and organization.
Size adaptation & grading
Generate or grade patterns to multiple sizes.
Parametric design
Use FreeSewing designs with your measurements; generate all sizes.
Visual pattern drawing
Draw pattern pieces on a canvas and apply grading rules.
Export
Export patterns to PDF and SVG for printing and sharing.
Built for Makers and Pattern Designers
PatternSoft is for anyone who wants to design, adapt, and grade sewing patterns on their own terms.
Why PatternSoft?
One app for your patterns. Your data stays local, free and open source—no lock-in.