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Decision fieldFree + paidThreadloop Sewing Pattern DatabaseGlobalRemoveOpen accessKnitting Stitch LibraryGlobalRemoveFree downloadAAFA Restricted Substance ListGlobalRemoveOpen accessYarnSubGlobalRemove
Decision fit
Primary jobFind patterns & fitLearn techniquesCheck standardsChoose materials
Also useful forNo additional job recordedNo additional job recordedNo additional job recordedNo additional job recorded
AreaPatterns & fitTechniques & repairStandardsYarn
Best forSearching current and out-of-print sewing patternsLearning or comparing knit structuresSurveying finished-product chemical regulationsBuilding a substitution shortlist for a discontinued or unavailable yarn before checking quantity, availability, and a representative swatch
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.A foundational library, not yet an exhaustive stitch encyclopedia.AAFA provides the list for information only and says it is voluntary, may contain omissions or inaccuracies, and is not legal advice. A global most-restrictive value is not a complete market or product determination. Verify the current controlling law, jurisdiction, product and component scope, exemptions, effective dates, test method, sampling plan, brand requirements, manufacturing-input controls, and other safety rules.A suggested match is a data-based shortlist, not proof that the yarn suits the pattern or maker. Records can be incomplete or wrong, price bands are approximate, availability varies by country and seller, and shade-level matching is unavailable. YarnSub says affiliate status does not change suggestions, but equally rated matches are ordered by brand popularity. Confirm required gauge, total length, fibre behavior, construction, care, colour, dye lot, accessibility, price, availability, and seller terms, then make and assess a representative swatch before committing.
Practical access
ForMakersMakersApparel brandsMakers
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessFree + paidOpen accessFree downloadOpen access
FormatCommunityStitch AuthorityReferenceReference
Source typeCommunity databaseStitch AuthorityIndustry organizationFirst-party platform
Account, payment, and exit
Access scopeSewer searching pattern records or organizing patterns, projects, fabric, notions, and private files.Not yet reviewed at this level.Not yet reviewed at this level.Maker comparing a replacement for a named yarn before buying.
Before an accountBrowse the pattern database, guide, designers, publications, and public community areas without creating an account.Not yet reviewed at this level.Not yet reviewed at this level.Search a named yarn, inspect suggested substitutes, and filter by fibre and approximate price band without creating an account.
Free-account boundaryA free account needs no card and supports a stash, wishlist, projects, reviews, and personal organization.Not yet reviewed at this level.Not yet reviewed at this level.The checked core substitution route does not require an account, and the FAQ does not offer user-entered yarn records.
Payment boundaryPlus adds PDF pattern storage, collections, saved searches, bulk editing, and other workflow features on monthly or annual billing.Not yet reviewed at this level.Not yet reviewed at this level.No subscription is presented for the core route. Affiliate retailer links and optional donations help fund the site; equal-rated matches are ordered by brand popularity.
Cancellation or exitCancel through an in-account link. Paid features remain through the current billing cycle, then the account returns to free features.Not yet reviewed at this level.Not yet reviewed at this level.There is no account or recurring plan to cancel for the core route. The newsletter has a separate unsubscribe link.
Saved work and dataThe terms say submitted materials remain yours, but the checked public pages do not explain a full export or how stored PDFs behave after downgrade. Keep originals outside the platform.Not yet reviewed at this level.Not yet reviewed at this level.YarnSub does not expose an API and does not accept user-entered yarn details. Use the data-issue link on a yarn page for corrections.
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. Current terms state that the free plan requires no card, paid upgrades start billing immediately, cancellation retains paid features through the current cycle, and the account then returns to free features.The linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface.AAFA published RSL Version 26 on January 28, 2026 in searchable spreadsheet and PDF formats. The association describes it as a regularly updated reference to laws and regulations restricting chemicals in finished apparel, footwear, accessories, and home textiles. Its methodology records final-product or component limits, jurisdiction, test method, and comments, and excludes factory-process restrictions and non-chemical product-safety rules.YarnSub's official FAQ says its matching software compares gauge, texture, yarn weight and density, fibre content, and fibre qualities such as drape and softness. Discontinued yarns remain searchable as starting points but are excluded from suggestions. Result filters can exclude animal, animal-derived, synthetic, or plant fibre groups and use a subjective $ to $$$$$ price indicator. The site does not accept user-entered yarn details, individual shade cards, or expose an API. Each yarn page provides a data-issue route.
Linked page reviewedJul 28, 2026Jul 15, 2026Jul 21, 2026Jul 28, 2026
Next review dueJan 24, 2027Jul 15, 2027Oct 19, 2026Jan 24, 2027
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