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| Decision field | Open accessYarnSubGlobalRemove | Open accessFSC Certificate SearchGlobalRemove | Open accessGOTS Certified SuppliersGlobalRemove | Free accountThreadloop Sewing Pattern DatabaseGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Choose materials | Check standards | Check standards | Find patterns & fit |
| Area | Yarn | Standards | Materials | Patterns & fit |
| Best for | Replacing a discontinued or unavailable yarn | Checking chain-of-custody scope for paper packaging, hangtags, and printed materials | Checking GOTS certification records | Searching current and out-of-print sewing patterns |
| Know before using | A suggested match is a data-based shortlist, not proof that the yarn suits the pattern or maker. Yarn records can be incomplete or wrong, prices and availability vary by market, and the site uses affiliate links. Confirm the required gauge, total length, fibre behavior, construction, care, color, dye lot, accessibility, and seller terms, then make and assess a representative swatch before committing. | A valid certificate covers only its stated organization and scope; it does not prove that a specific packaging order carries an FSC claim or that every party and transaction is documented correctly. | A company result is not a blanket approval; confirm the certificate scope, validity, facility, process, product, and transaction documentation for the exact purchase. | 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. |
| Practical access | ||||
| For | Makers | Apparel brands | Apparel brands | Makers |
| Location or jurisdiction | Global | Global | Global | Global |
| Access | Open access | Open access | Open access | Free account |
| Format | Reference | Directory | Directory | Community |
| Source type | First-party platform | Official registry | Official registry | Community database |
| Source and review | ||||
| What the source establishes | 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 suggested replacements, and each yarn page provides a route to report source-data problems. | FSC Search provides current certificate and licensing records with organization, code, type, certification body, status, country, product category, and timestamped record details. | The official GOTS search exposes certified entities by country, field of operation, product category, and certification detail, including processing and trading scopes. | 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. |
| Linked page reviewed | Jul 21, 2026 | Jul 15, 2026 | Jul 15, 2026 | Jul 21, 2026 |
| Next review due | Jan 17, 2027 | Oct 13, 2026 | Oct 13, 2026 | Jan 17, 2027 |
| Inspect | ||||
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