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Side-by-side evidence and decision metadata for selected textile resources.
Decision fieldOpen accessYarnSubGlobalRemoveOpen accessFreeSewingGlobalRemoveFree accountWoolmark Learning CentreGlobalRemoveOpen accessPattern Grading & Size-Run Validation RecordGlobalRemove
Decision fit
Primary jobChoose materialsFind patterns & fitLearn techniquesFind patterns & fit
Also useful forNo additional job recordedNo additional job recordedNo additional job recordedNo additional job recorded
AreaYarnPatterns & fitTechniques & repairPatterns & fit
Best forBuilding a substitution shortlist for a discontinued or unavailable yarn before checking quantity, availability, and a representative swatchCustom-fit home sewing patternsStructured wool educationAuditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence
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 generated pattern is not independent fit evidence or a production-ready graded block. The result still depends on accurate measurements, the selected design and options, ease assumptions, fabric behavior, construction, and representative test garments. An account stores saved patterns and measurement sets, so review the platform's privacy terms before retaining personal measurements.This is Woolmark-operated education focused on wool, not a neutral comparison of all fibres or processing systems. A completion badge records coursework, not independent proof of production competence, product performance, environmental impact, or compliance. Confirm technical values and local requirements against current standards before production use.The record does not create a production grade, supply universal increments or breakpoints, validate a CAD file or fit population, reproduce licensed standards, or replace qualified anthropometric, pattern, technical-design, fit, quality, accessibility, safety, statistical, and user-research review.
Practical access
ForMakersMakersBothApparel brands
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessOpen accessOpen accessFree accountOpen access
FormatReferenceSoftwareReferenceStitch Authority
Source typeFirst-party platformOpen-source projectIndustry organizationStitch 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.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.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.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.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.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.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.FreeSewing's official documentation says the browser editor drafts a selected design in real time from a measurement set rather than scaling or grading a standard-size pattern. Users can adjust design options and export the generated result, including as PDF; saving the pattern to an account is optional and is used to revisit it later.The current Woolmark Learning Centre library publishes free account-based coursework with module counts, completion times, progress tracking, knowledge checks, and supporting resources. Its wool programs cover fibre science, raw-wool and yarn processing, dyeing and finishing, woven textiles, knitwear, product quality, and wastewater management for learners and facilitators.The guide cites current ISO body-table, size-designation, and garment-measurement boundaries plus two peer-reviewed studies that tested the relationship between conventional grade rules, anthropometric evidence, and garment fit; it requires product-specific target deltas and validation instead of publishing universal increments.
Linked page reviewedJul 28, 2026Jul 21, 2026Jul 28, 2026Jul 27, 2026
Next review dueJan 24, 2027Jan 17, 2027Jan 24, 2027Jul 27, 2027
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