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What is Seamly?

Princess Seam dress block

Seamly2D (formerly Valentina) is open source patternmaking software to create shareable custom-sized digital patterns.
SeamlyMe (formerly Tape) allows you to create measurement files for yourself and others. You can also create multisize (standard) tables.
Seamly3D will provide 3D visualisation features.
SeamlyCloud will be our pattern sharing website.
For more information, join our friendly active FORUM

What's New?!


Seamly2D is open source patternmaking software, released under the GPLv3+ license. You have the right to use, sell, share, and distribute your patterns in any way you wish.

Seamly2D runs on Windows, Mac OSX, and Linux, and is downloadable from

If you have questions or want more info, join our active, friendly Forum at

Go here to read some clarification about the fork and the various name Seamly2D, LibreFashion and Valentina


These links will be updated to Seamly URLs

Website and Downloads:
Facebook: Seamly2D.Project
Twitter: @ValentinaPSW
IRC channel: #valentina on
Press Coverage
Guide to Editing the Wiki


20/12/1 > Command Line options

20/11/17 > Added Seamly2D logo
04/11/17 > Creating Smooth Curves: The Kolson Method
04/11/17 > Wiki layout changed to columns

30/09/17 > Name is changing