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Decision fieldFree accountThreadloop Sewing Pattern DatabaseGlobalRemovePaidBootstrapFashion SlopersGlobalRemove
Decision fit
Primary jobFind patterns & fitFind patterns & fit
AreaPatterns & fitPatterns & fit
Best forSearching current and out-of-print sewing patternsBuying 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.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
ForMakersBoth
Location or jurisdictionGlobalGlobal
AccessFree accountPaid
FormatCommunityMarketplace
Source typeCommunity databaseCommercial 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.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, 2026
Next review dueJan 17, 2027Jan 17, 2027
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