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| Decision field | Free accountThreadloop Sewing Pattern DatabaseGlobalRemove | Open accessFabric Mass Unit ConverterGlobalRemove | Open accessGOTS Certified SuppliersGlobalRemove | Free + paidMaker’s RowUnited States · North AmericaRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Find patterns & fit | Choose materials | Check standards | Source production |
| Area | Patterns & fit | Materials | Materials | Production |
| Best for | Searching current and out-of-print sewing patterns | Translating the same fabric mass-per-area result between metric and U.S. customary listings | Checking GOTS certification records | Finding US production partners |
| Know before using | 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 result is a numerical unit conversion, not a new measurement or conformance decision; it does not establish sample or lot representativeness, significant digits, drape, warmth, opacity, thickness, stretch, strength, shrinkage, durability, sewability, end use, target, or tolerance. | A company result is not a blanket approval; confirm the certificate scope, validity, facility, process, product, and transaction documentation for the exact purchase. | A factory profile, platform label, bid, estimate, or message does not establish current identity, factory ownership, capability, capacity, workmanship, pricing, compliance, delivery, or project fit. Paid-plan visibility can affect who responds. Verify the production site, subcontracting, references, samples, quality and compliance records, specifications, commercial terms, and remedies directly. |
| Practical access | ||||
| For | Makers | Both | Apparel brands | Apparel brands |
| Location or jurisdiction | Global | Global | Global | United States · North America |
| Access | Free account | Open access | Open access | Free + paid |
| Format | Community | Stitch Authority | Directory | Marketplace |
| Source type | Community database | Stitch Authority | Official registry | Commercial marketplace |
| Source and review | ||||
| What the source establishes | 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. | The calculator uses the NIST SP 811 Appendix B.8 conversion from avoirdupois ounces per square yard to kilograms per square metre and links to a source-reviewed fabric mass record for method, sampling, conditioning, and product controls. | The official GOTS search exposes certified entities by country, field of operation, product category, and certification detail, including processing and trading scopes. | Maker's Row currently lets a brand submit a project before advance sign-up, then provides access to an account. Its project workflow records product details and files and connects projects with factories by location and specialty. Search guidance lists apparel capabilities such as pattern making, sourcing, sample making, and production. Factory access to bids is plan-dependent. |
| Linked page reviewed | Jul 21, 2026 | Jul 16, 2026 | Jul 15, 2026 | Jul 21, 2026 |
| Next review due | Jan 17, 2027 | Jul 16, 2027 | Oct 13, 2026 | Jan 17, 2027 |
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