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Decision fieldFree + paidThreadloop Sewing Pattern DatabaseGlobalRemoveOpen accessTech Pack Release & Change-Control RecordGlobalRemoveFree accountSewportGlobalRemoveOpen accessYarnSubGlobalRemove
Decision fit
Primary jobFind patterns & fitSource productionSource productionChoose materials
Also useful forNo additional job recordedNo additional job recordedNo additional job recordedNo additional job recorded
AreaPatterns & fitProductionProductionYarn
Best forSearching current and out-of-print sewing patternsBuilding and releasing a tech pack without silent defaults, duplicate sources, or ambiguous final filesRequesting apparel-production proposalsBuilding 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.The record does not create product specifications, prove fit or manufacturability, select materials or construction settings, establish legal compliance, reproduce licensed standards, or replace qualified technical, production, quality, testing, sourcing, logistics, safety, compliance, and legal review.A profile, proposal, match, or escrow status does not establish factory ownership, identity, capacity, workmanship, quality systems, labour or chemical compliance, delivery performance, contract enforceability, or project fit. Verify the legal and production entities, references, site and subcontracting, samples, compliance evidence, specifications, terms, and remedies directly.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
ForMakersApparel brandsApparel brandsMakers
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessFree + paidOpen accessFree accountOpen access
FormatCommunityStitch AuthorityMarketplaceReference
Source typeCommunity databaseStitch AuthorityCommercial marketplaceFirst-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 guide cites published ISO documented-information, garment-measurement, stitch, and seam sources plus current U.S. FTC textile and care-labeling guidance; it discloses ISO 10013:2021's current review stage, and its working record makes organization-specific requirements, suppliers, evidence, issues, and approvals explicit.Sewport's current brand workflow starts with an account and guided project enquiry, then exposes proposals from garment factories and production specialists. The platform tells brands to compare profiles, portfolios, location, price, and communication, then record service, delivery, payment, and contract terms in a formal proposal. Its service-provider workflow includes factories, sample studios, pattern cutters, tech-pack makers, sourcing specialists, and material suppliers, with optional split-payment escrow.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 27, 2026Jul 21, 2026Jul 28, 2026
Next review dueJan 24, 2027Jul 27, 2027Jan 17, 2027Jan 24, 2027
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