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Decision fieldOpen accessASDP Sewing Professional DirectoryUnited States · North AmericaRemoveFree downloadSeamly2DGlobalRemoveOpen accessControlled Tech Pack OrientationGlobalRemoveFree accountThreadloop Sewing Pattern DatabaseGlobalRemove
Decision fit
Primary jobSource productionFind patterns & fitSource productionFind patterns & fit
AreaProductionPatterns & fitProductionPatterns & fit
Best forFinding a US sewing or patternmaking professionalDigital pattern draftingUnderstanding what a tech pack must control before using a template or releasing workSearching current and out-of-print sewing patterns
Know before usingThis is a member referral directory, not a Stitch Authority roster or approval. ASDP states that it makes no representations, warranties, or guarantees and assumes no responsibility for members' products or services. Membership, a code of ethics, a profile, or referral availability does not establish credentials, experience, capacity, insurance, price, accessibility, workmanship, schedule, or project fit. Check those points, references, scope, samples, terms, and remedies directly.Patternmaking 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.
Practical access
ForBothBothApparel brandsMakers
Location or jurisdictionUnited States · North AmericaGlobalGlobalGlobal
AccessOpen accessFree downloadOpen accessFree account
FormatDirectorySoftwareStitch AuthorityCommunity
Source typeIndustry organizationOpen-source projectStitch AuthorityCommunity database
Source and review
What the source establishesASDP's public directory searches members currently accepting referrals by location and professional specialty, including patternmakers, production sewers, designers, teachers, tailors, alteration specialists, and fabric or materials suppliers. A result opens a member profile and a contact action, and the page identifies the population as association members in good standing.The 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.
Linked page reviewedJul 21, 2026Jul 21, 2026Jul 16, 2026Jul 21, 2026
Next review dueJan 17, 2027Jan 17, 2027Jul 16, 2027Jan 17, 2027
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