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Decision fieldOpen accessCrochet Stitch LibraryGlobalRemoveFree accountThreadloop Sewing Pattern DatabaseGlobalRemoveFree accountFOURSOURCE Supplier NetworkGlobalRemoveOpen accessApparel Grade-Rule & Size-Run Validation RecordGlobalRemove
Decision fit
Primary jobLearn techniquesFind patterns & fitSource productionFind patterns & fit
AreaTechniques & repairPatterns & fitProductionPatterns & fit
Best forLearning or identifying crochet stitchesSearching current and out-of-print sewing patternsSearching global apparel and textile production capabilitiesAuditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence
Know before usingA foundational library, not yet an exhaustive stitch encyclopedia.Community 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.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.The record does not create a production grade, supply universal increments or breakpoints, validate a CAD file or fit population, reproduce licensed standards, or replace qualified anthropometric, pattern, technical-design, fit, quality, accessibility, safety, statistical, and user-research review.
Practical access
ForMakersMakersApparel brandsApparel brands
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessOpen accessFree accountFree accountOpen access
FormatStitch AuthorityCommunityMarketplaceStitch Authority
Source typeStitch AuthorityCommunity databaseCommercial marketplaceStitch Authority
Source and review
What the source establishesThe linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface.Threadloop'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.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 guide cites current ISO body-table, size-designation, and garment-measurement boundaries plus two peer-reviewed studies that tested the relationship between conventional grade rules, anthropometric evidence, and garment fit; it requires product-specific target deltas and validation instead of publishing universal increments.
Linked page reviewedJul 15, 2026Jul 21, 2026Jul 21, 2026Jul 16, 2026
Next review dueJul 15, 2027Jan 17, 2027Jan 17, 2027Jul 16, 2027
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