Sewwren (sewwren.com) provides free sewing tools, patterns, and lessons.
Our calculators and tools run entirely in your browser. Measurements and values you enter are not sent to or stored on our servers.
Sewwren uses the YouTube Data API v3 solely to upload and manage videos on the Sewwren YouTube channel, at the channel owner's direction. We do not access, collect, or share any viewer or user data through this API. API credentials are stored securely and are never shared with third parties.
Questions: [email protected]
Last updated: 11 October 2026