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Decision fieldOpen accessControlled Tech Pack OrientationGlobalRemoveOpen accessHook & Needle Diameter ReferenceGlobalRemoveFree accountFOURSOURCE Supplier NetworkGlobalRemoveFree downloadSeamly2DGlobalRemove
Decision fit
Primary jobSource productionLearn techniquesSource productionFind patterns & fit
AreaProductionYarnProductionPatterns & fit
Best forUnderstanding what a tech pack must control before using a template or releasing workChecking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gaugeSearching global apparel and textile production capabilitiesDigital pattern drafting
Know before usingAn orientation rather than a completed product record; it does not supply a universal format, licensed standard content, measurements, tolerances, construction settings, labels, approvals, compliance conclusion, or product-release authority.The reference is not a dimensional measurement, manufacturer inspection, UK or Canadian conversion, steel-hook chart, tool recommendation, yarn assignment, gauge result, or proof that a proposed tool will produce the required fabric.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
ForApparel brandsMakersApparel brandsBoth
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessOpen accessOpen accessFree accountFree download
FormatStitch AuthorityStitch AuthorityMarketplaceSoftware
Source typeStitch AuthorityStitch AuthorityCommercial marketplaceOpen-source project
Source and review
What the source establishesThe guide cites current ISO sources for documented-information, garment-measurement, stitch, and seam boundaries plus current U.S. FTC textile and care-labeling guidance; it explicitly separates those authorities from product-specific technical and market decisions.The lookup reproduces the current public Craft Yarn Council metric and U.S. alias rows and follows the Council's warning that company letter and number labels vary; blank aliases remain blank instead of being inferred.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 16, 2026Jul 16, 2026Jul 21, 2026Jul 21, 2026
Next review dueJul 16, 2027Jul 16, 2027Jan 17, 2027Jan 17, 2027
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