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Decision fieldOpen accessPattern Test Brief TemplateGlobalRemoveFree accountFOURSOURCE Supplier NetworkGlobalRemoveFree downloadSeamly2DGlobalRemove
Decision fit
Primary jobFind patterns & fitSource productionFind patterns & fit
AreaPatterns & fitProductionPatterns & fit
Best forPlanning a sewing, knitting, or crochet pattern testSearching global apparel and textile production capabilitiesDigital pattern drafting
Know before usingThe workflow is not a contract or quality certification; local legal duties and technical review may still apply.The company count is a changing platform claim. Search fields, profiles, certificates, locations, and account access do not independently verify the legal entity, factory ownership, capability, capacity, certificate validity or scope, compliance performance, delivery, or project fit. Confirm the site and subcontracting, credentials with issuers, samples, audits when appropriate, specifications, contracts, and commercial terms.Patternmaking 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.
Practical access
ForBothApparel brandsBoth
Location or jurisdictionGlobalGlobalGlobal
AccessOpen accessFree accountFree download
FormatStitch AuthorityMarketplaceSoftware
Source typeStitch AuthorityCommercial marketplaceOpen-source project
Source and review
What the source establishesThe linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface.FOURSOURCE's current public network page presents an operator-reported global company count and country or territory search. It says logged-in users can narrow results by compliance certificates, product groups, fabric types, target groups, minimum order quantities, and other fields, with a free-trial and supplier sign-up route.The 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.
Linked page reviewedJul 15, 2026Jul 21, 2026Jul 21, 2026
Next review dueJul 15, 2027Jan 17, 2027Jan 17, 2027
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