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Decision fieldFree accountThreadloop Sewing Pattern DatabaseGlobalRemoveQuote-basedMaterial ExchangeGlobalRemoveOpen accessHook & Needle Diameter ReferenceGlobalRemoveOpen accessGOTS Certified SuppliersGlobalRemove
Decision fit
Primary jobFind patterns & fitChoose materialsLearn techniquesCheck standards
AreaPatterns & fitMaterialsYarnMaterials
Best forSearching current and out-of-print sewing patternsStructured material sourcing across teamsChecking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gaugeChecking GOTS certification records
Know before usingCommunity members add and quality-control the records, so confirm sizing, measurements, fabric suggestions, format, availability, errata, license, and purchase terms with the designer or publisher. Adding an entry to a stash does not provide the pattern files. Saved searches and private PDF storage are paid Plus features, and a listing or review does not establish pattern accuracy or fit.Supplier content, uploaded certificates, and AI suggestions are leads, not independent verification. Public brand pricing and full access are not stated on the main page. Verify material identity and performance, certificate issuer and validity, supplier capability, samples, price, availability, commercial terms, data permissions, and any AI output before a sourcing decision.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.A company result is not a blanket approval; confirm the certificate scope, validity, facility, process, product, and transaction documentation for the exact purchase.
Practical access
ForMakersApparel brandsMakersApparel brands
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessFree accountQuote-basedOpen accessOpen access
FormatCommunitySoftwareStitch AuthorityDirectory
Source typeCommunity databaseFirst-party platformStitch AuthorityOfficial registry
Source and review
What the source establishesThreadloop's official guide describes an independent, fully crowdsourced database covering available and out-of-print sewing patterns. Its search supports pattern type, fabric type, age group, body type, cup size, level, format, file features, language, measurements, availability, and other filters; members can also track a stash, wishlist, projects, reviews, and discussions.Material Exchange's current terms describe a business-to-business sourcing hub that connects brands and suppliers for AI-assisted material discovery, sample requests, bulk inquiries, negotiation, and collaboration. Suppliers upload product descriptions, availability, pricing, and certificates. The terms state that the platform cannot verify certificate accuracy and that AI results may be imperfect.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.The official GOTS search exposes certified entities by country, field of operation, product category, and certification detail, including processing and trading scopes.
Linked page reviewedJul 21, 2026Jul 21, 2026Jul 16, 2026Jul 15, 2026
Next review dueJan 17, 2027Jan 17, 2027Jul 16, 2027Oct 13, 2026
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