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Decision fieldFree downloadSeamly2DGlobalRemoveOpen accessOpen Supply HubGlobalRemove
Decision fit
Primary jobFind patterns & fitSource production
AreaPatterns & fitProduction
Best forDigital pattern draftingResearching production locations and affiliations
Know before usingPatternmaking knowledge, controlled measurement files, production conventions, and sewn fit testing are still required. The software does not validate body measurements, ease, balance, grading rules, fabric behavior, construction, or product fit. The project currently labels its user wiki manual as needing updates, so confirm current commands and file behavior against the installed release and active support channels.The platform combines stakeholder-contributed, public-list, facility-claimed, and partner data with different origins and update paths. A facility record, contributor connection, claim, certification field, or shared OS ID is not a quality endorsement, ownership finding, complete supplier relationship, current capacity statement, or due-diligence result. Inspect the source badges, contributors, dates, duplicates, claimed fields, and linked evidence, then verify the facility and intended business relationship directly.
Practical access
ForBothApparel brands
Location or jurisdictionGlobalGlobal
AccessFree downloadOpen access
FormatSoftwareDirectory
Source typeOpen-source projectCommunity database
Source and review
What the source establishesThe maintained Seamly2D repository identifies the application as GPLv3+ open-source patternmaking software for Windows, macOS, and Linux. It reads multi-size measurement files for standardized sizes and individual measurement files for custom-fit work, publishes downloadable builds and releases, and links an active website and user forum.Open Supply Hub's current guide supports facility-name or OS ID, contributor, location, sector, parent-company, facility-type, processing-type, product-type, and worker-count searches, with contributor information visible on facility data. Manual search is open, a free account supports bounded data downloads, and paid services cover larger or programmatic access.
Linked page reviewedJul 21, 2026Jul 21, 2026
Next review dueJan 17, 2027Jan 17, 2027
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