Instead of Seamly2D
Seamly2D alternatives
Seamly2D is free, open-source software for creating garment patterns, with tools to adapt earlier designs and work from size charts, made-to-measure measurements, and converted body scans. It supports size grading and SVG export, and its stated uses range from apparel and costumes to pet gear and upholstery. Seamly describes a workflow from design through manufacturing and integration across 2D, 3D, and mixed reality. It runs on Windows, macOS, and Linux, though its plan details identify Windows support and SVG export.
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Valentina
Free plan LinuxMacWindowsFree, open-source parametric clothing patterns — Valentina adds parametric pattern rearrangement using measurements, increments, formulas, and construction rules.
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garment.dev
Free plan WebBrowser-based pattern production and team workflows — Garment.dev adds browser-based marker nesting, production DXF, shared workspaces, and live team collaboration.
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PatternMaker
Free plan WindowsWindows users generating patterns from measurements — PatternMaker adds measurement-based pattern macros and reusable grading data, but is strictly 2-D CAD.
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Style3D Studio
Free plan MacWindowsFashion teams developing garments in 3D — Style3D Studio pairs 2D pattern editing with 3D garment simulation and real-time ray-tracing rendering.
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Browzwear VStitcher
by Browzwear VStitcherFree plan APIMacSelf-hosted+1Virtual garment development and fit visualization — VStitcher adds 3D draping, customizable avatars, tension and pressure visualization, and production tech packs.
7.6 Visit site - 6
PolyPattern Design Pro
Paid MacWindowsPattern rooms needing drafting and machine connectivity — PolyPattern Design Pro emphasizes pattern-room processes, grading, dart manipulation, and machine or software communication.
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Futura Next
Paid WindowsWindows-based fashion and technical textile production — Futura Next connects pattern making with marker optimization, cutting, product data, and made-to-measure production.
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PAD System
Free trial LinuxMacWeb+1 - 10
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GRAFIS CAD Apparel
Free trial Windows - 12
Audaces 3D
Paid Windows - 13
Gemini Creative STUDIO
Paid iPhoneWebWindows - 14
Style3D Studio
Free plan Windows - 15
Garment Designer
Paid MacWindows - 16
Fashion Dot CAD
Paid Windows - 17
Lectra Kubix Link PLM
Paid WebWindows - 18
TUKA3D
Free trial Windows - 19
Gerber AccuMark
Paid Windows - 20
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StyleCAD PDS
Paid MacWindows - 22
Tailornova
Paid Web - 23
Browzwear Lotta
Paid MacWindows4.8 Visit site - 24
NedGraphics Dobby
Paid
A different tool may fit better if you need parametric measurement rules, browser-based collaboration, production DXF exchange, or a dedicated 3D garment workflow. Other considerations include whether you want a free option or can consider paid software, which operating systems you need, and whether pattern design alone is enough or you also need markers, production documentation, or team tools. Compare each option’s approach to pattern drafting, grading, fit visualization, and manufacturing handoff before switching.