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Decision fieldFree accountThreadloop Sewing Pattern DatabaseGlobalRemoveOpen accessKnittyGlobalRemoveOpen accessYarnSubGlobalRemovePaidBootstrapFashion SlopersGlobalRemove
Decision fit
Primary jobFind patterns & fitFind patterns & fitChoose materialsFind patterns & fit
AreaPatterns & fitYarnYarnPatterns & fit
Best forSearching current and out-of-print sewing patternsFree editorial knitting patterns and techniquesReplacing a discontinued or unavailable yarnBuying a quick measurement-generated sloper
Know before usingCommunity 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.Free access does not grant commercial reproduction or sale rights; uses beyond one personal copy must be resolved with the designer or author. Knitty says it tries to avoid errors but disclaims responsibility for pattern and technique inaccuracies. Check the live page for corrections, verify gauge and measurements, and confirm permission before any commercial use.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.Each purchase is an automated draft based on submitted measurements and the chosen product's formula, ease, fabric, and format assumptions. Supported input ranges do not prove fit, and product pages themselves recommend a muslin and additional adjustments for some figures. Confirm included instructions and file compatibility, protect stored body data, and test the output before design or production use.
Practical access
ForMakersMakersMakersBoth
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessFree accountOpen accessOpen accessPaid
FormatCommunityReferenceReferenceMarketplace
Source typeCommunity databaseFirst-party platformFirst-party platformCommercial marketplace
Source and review
What the source establishesThreadloop'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.Knitty currently publishes web-only editorial issues containing original knitting and crochet patterns and articles. Its legal page states that patterns are free for one person's personal use, identifies each designer or author as the copyright holder, and explains that verified pattern corrections are posted in bright pink on the pattern page.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.BootstrapFashion's current sloper catalogue sells measurement-generated woven and knit blocks. Individual product pages accept body measurements and optional fit adjustments, state supported measurement and height ranges, disclose ease and fabric assumptions, and offer output choices including print-ready PDF and CAD-oriented PLT or DXF, with the generated file sent after purchase.
Linked page reviewedJul 21, 2026Jul 21, 2026Jul 21, 2026Jul 21, 2026
Next review dueJan 17, 2027Jan 17, 2027Jan 17, 2027Jan 17, 2027
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