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| Decision field | Open accessASDP Sewing Professional DirectoryUnited States · North AmericaRemove | Free downloadSeamly2DGlobalRemove | Open accessFreeSewingGlobalRemove | Free accountThreadloop Sewing Pattern DatabaseGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Source production | Find patterns & fit | Find patterns & fit | Find patterns & fit |
| Area | Production | Patterns & fit | Patterns & fit | Patterns & fit |
| Best for | Finding a US sewing or patternmaking professional | Digital pattern drafting | Custom-fit home sewing patterns | Searching current and out-of-print sewing patterns |
| Know before using | This 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. | 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. | 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 | ||||
| For | Both | Both | Makers | Makers |
| Location or jurisdiction | United States · North America | Global | Global | Global |
| Access | Open access | Free download | Open access | Free account |
| Format | Directory | Software | Software | Community |
| Source type | Industry organization | Open-source project | Open-source project | Community database |
| Source and review | ||||
| What the source establishes | ASDP'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. | 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. | 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 reviewed | Jul 21, 2026 | Jul 21, 2026 | Jul 21, 2026 | Jul 21, 2026 |
| Next review due | Jan 17, 2027 | Jan 17, 2027 | Jan 17, 2027 | Jan 17, 2027 |
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