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Seamly2D

Sewing pattern design software

Seamly2D project ✓ Verified

io.seamly.seamly2d
View on Flathub ↗

Seamly2D is pattern design software to create reusable, scalable, sharable custom-fit patterns using bespoke tailoring, haute couture, and historical pattern drafting techniques. Seamly2D saves time and improves fit by creating patterns that are reusable parametric CAD engineering documents.

Unlike other pattern design software, Seamly2D allows designers to have complete control of the patternmaking process. Each reusable, scalable pattern can read multi-size tables for boutique sizing, and read individual measurement files for custom-fit.

Seamly2D is open source software released under the GPLv3+ license. Seamly2D is available for Windows, MacOS, and Linux. Learn more about Seamly2D by joining our active, friendly community at https://forum.seamly.io

Screenshots

Seamly2D with a pattern open in Draft mode
Seamly2D with a pattern open in Draft mode

Observed history

App ChangeVersionWhen ↓
updatedv2026.10.12.20013 Oct 2026

Upstream releases

Release notes supplied by the developer. These dates are not Flathub package publication times.

v2026.10.12.20012 Oct 2026

No release notes supplied.

v2026.10.5.1545 Oct 2026

No release notes supplied.

v2026.9.28.15128 Sept 2026

No release notes supplied.

v2026.9.21.14621 Sept 2026

No release notes supplied.