Sewwren (sewwren.com) provides free sewing tools, patterns, and lessons.
The site is free to use. There are no accounts and no payments. You can use the tools and patterns for your own sewing, including for your own customers if you sew for others.
The calculators, size guides, and patterns are guides, not guarantees. Measurements, fabric amounts, and fit can vary, so check results against your own materials and make a test version before cutting good fabric. Sewwren is not responsible for fabric, time, or money lost from using the tools.
The text, designs, patterns, lessons, and videos on Sewwren belong to Sewwren. Please do not resell them or present them as your own. Linking to the site and sharing it is welcome.
Sewwren videos are published on YouTube and are also subject to the YouTube Terms of Service. Our privacy practices are described in our Privacy Policy.
We may update these terms and the site at any time. The latest version is always on this page.
Questions: [email protected]
Last updated: 11 October 2026