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Side-by-side evidence and decision metadata for selected textile resources.
Decision fieldOpen accessYarnSubGlobalRemoveOpen accessSeam Allowance ConverterGlobalRemoveOpen accessPattern Test Brief TemplateGlobalRemove
Decision fit
Primary jobChoose materialsFind patterns & fitFind patterns & fit
Also useful forNo additional job recordedNo additional job recordedNo additional job recorded
AreaYarnPatterns & fitPatterns & fit
Best forBuilding a substitution shortlist for a discontinued or unavailable yarn before checking quantity, availability, and a representative swatchTranslating a seam allowance already stated by a pattern or controlled specificationPlanning a sewing, knitting, or crochet pattern test
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.This is a unit-translation reference. It does not select, approve, or change a seam allowance; establish a universal fraction; interpret an unstated cutting or stitching line; or replace the exact pattern version, controlled specification, material and seam evidence, sample, production method, equipment, tolerance, or release authority.The workflow is not a contract or quality certification; local legal duties and technical review may still apply.
Practical access
ForMakersBothBoth
Location or jurisdictionGlobalGlobalGlobal
AccessOpen accessOpen accessOpen access
FormatReferenceStitch AuthorityStitch Authority
Source typeFirst-party platformStitch AuthorityStitch Authority
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.NIST states that one inch is exactly 25.4 millimetres, and the SI decimal relationship makes one centimetre equal to 10 millimetres. The tool uses those factors, displays rounded equivalents, exposes the size difference to the nearest 1/16 inch when converting to inches, and preserves valid value, source-unit, and target-unit state in the URL.The linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface.
Linked page reviewedJul 28, 2026Jul 28, 2026Jul 15, 2026
Next review dueJan 24, 2027Jul 28, 2027Jul 15, 2027
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