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Decision fieldFree downloadSeamly2DGlobalRemoveOpen accessControlled Tech Pack OrientationGlobalRemoveFree accountThreadloop Sewing Pattern DatabaseGlobalRemoveOpen accessQuiltMapGlobalRemove
Decision fit
Primary jobFind patterns & fitSource productionFind patterns & fitChoose materials
AreaPatterns & fitProductionPatterns & fitMaterials
Best forDigital pattern draftingUnderstanding what a tech pack must control before using a template or releasing workSearching current and out-of-print sewing patternsFinding quilt-material sellers and adjacent quilting services by country or map
Know before usingPatternmaking 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.An orientation rather than a completed product record; it does not supply a universal format, licensed standard content, measurements, tolerances, construction settings, labels, approvals, compliance conclusion, or product-release authority.Community 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.Coverage is quilting-specific and uneven by country; businesses can pay for enhanced features, and community or owner updates do not verify inventory, service quality, hours, or availability.
Practical access
ForBothApparel brandsMakersMakers
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessFree downloadOpen accessFree accountOpen access
FormatSoftwareStitch AuthorityCommunityDirectory
Source typeOpen-source projectStitch AuthorityCommunity databaseFirst-party platform
Source and review
What the source establishesThe 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.The guide cites current ISO sources for documented-information, garment-measurement, stitch, and seam boundaries plus current U.S. FTC textile and care-labeling guidance; it explicitly separates those authorities from product-specific technical and market decisions.Threadloop'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.QuiltMap describes free public search and free basic listings, community submissions and claims, and country routes covering North America, Europe, Japan, South Korea, and Australia.
Linked page reviewedJul 21, 2026Jul 16, 2026Jul 21, 2026Jul 15, 2026
Next review dueJan 17, 2027Jul 16, 2027Jan 17, 2027Jan 11, 2027
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