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Decision fieldFree accountThreadloop Sewing Pattern DatabaseGlobalRemoveOpen accessConstruction Classification & Callout Verification RecordGlobalRemoveOpen accessCrochet Stitch LibraryGlobalRemove
Decision fit
Primary jobFind patterns & fitSource productionLearn techniques
AreaPatterns & fitProductionTechniques & repair
Best forSearching current and out-of-print sewing patternsUsing construction codes without treating classification as a machine setting, material assignment, supplier translation, or performance guaranteeLearning or identifying crochet stitches
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.The record does not reproduce licensed code diagrams, verify a user's proposed code, authorize an ISO and ASTM crosswalk, select a construction, set stitch density or machine settings, prove supplier repeatability or performance, or replace the licensed standards and qualified construction, sewing, production, testing, safety, and quality review.A foundational library, not yet an exhaustive stitch encyclopedia.
Practical access
ForMakersApparel brandsMakers
Location or jurisdictionGlobalGlobalGlobal
AccessFree accountOpen accessOpen access
FormatCommunityStitch AuthorityStitch Authority
Source typeCommunity databaseStitch AuthorityStitch Authority
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.The guide cites the current public scopes and statuses of ISO 4915:1991, ISO 4916:1991, and ASTM D6193-16(2025), plus current seam-failure and seam-tensile methods; it keeps classification, translation, complete process definition, physical verification, and performance evidence separate.The linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface.
Linked page reviewedJul 21, 2026Jul 16, 2026Jul 15, 2026
Next review dueJan 17, 2027Jul 16, 2027Jul 15, 2027
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