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Side-by-side evidence and decision metadata for selected textile resources.
Decision fieldOpen accessYarnSubGlobalRemoveOpen accessGOTS Certified SuppliersGlobalRemoveFree downloadSeamly2DGlobalRemove
Decision fit
Primary jobChoose materialsCheck standardsFind patterns & fit
Also useful forNo additional job recordedNo additional job recordedNo additional job recorded
AreaYarnMaterialsPatterns & fit
Best forBuilding a substitution shortlist for a discontinued or unavailable yarn before checking quantity, availability, and a representative swatchChecking GOTS certification recordsDigital pattern drafting
Know before usingA 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.A company result is not a blanket approval; confirm the certificate scope, validity, facility, process, product, and transaction documentation for the exact purchase.Patternmaking knowledge, controlled measurement files, production conventions, and sewn fit testing are still required. The software does not validate body measurements, ease, balance, grading rules, fabric behavior, construction, or product fit. The project currently labels its user wiki manual as needing updates, so confirm current commands and file behavior against the installed release and active support channels.
Practical access
ForMakersApparel brandsBoth
Location or jurisdictionGlobalGlobalGlobal
AccessOpen accessOpen accessFree download
FormatReferenceDirectorySoftware
Source typeFirst-party platformOfficial registryOpen-source project
Account, payment, and exit
Access scopeMaker comparing a replacement for a named yarn before buying.Not yet reviewed at this level.Not yet reviewed at this level.
Before an accountSearch a named yarn, inspect suggested substitutes, and filter by fibre and approximate price band without creating an account.Not yet reviewed at this level.Not yet reviewed at this level.
Free-account boundaryThe checked core substitution route does not require an account, and the FAQ does not offer user-entered yarn records.Not yet reviewed at this level.Not yet reviewed at this level.
Payment boundaryNo 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.Not yet reviewed at this level.Not yet reviewed at this level.
Cancellation or exitThere is no account or recurring plan to cancel for the core route. The newsletter has a separate unsubscribe link.Not yet reviewed at this level.Not yet reviewed at this level.
Saved work and dataYarnSub does not expose an API and does not accept user-entered yarn details. Use the data-issue link on a yarn page for corrections.Not yet reviewed at this level.Not yet reviewed at this level.
Source and review
What the source establishesYarnSub'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.The official GOTS search exposes certified entities by country, field of operation, product category, and certification detail, including processing and trading scopes.The maintained Seamly2D repository identifies the application as GPLv3+ open-source patternmaking software for Windows, macOS, and Linux. It reads multi-size measurement files for standardized sizes and individual measurement files for custom-fit work, publishes downloadable builds and releases, and links an active website and user forum.
Linked page reviewedJul 28, 2026Jul 15, 2026Jul 21, 2026
Next review dueJan 24, 2027Oct 13, 2026Jan 17, 2027
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