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| Decision field | Open accessApparel CAD Pilot ChecklistGlobalRemove | Open accessYarnSubGlobalRemove | Open accessFreeSewingGlobalRemove | Free accountThreadloop Sewing Pattern DatabaseGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Find patterns & fit | Choose materials | Find patterns & fit | Find patterns & fit |
| Area | Patterns & fit | Yarn | Patterns & fit | Patterns & fit |
| Best for | Testing apparel CAD before a purchase or migration | Replacing a discontinued or unavailable yarn | Custom-fit home sewing patterns | Searching current and out-of-print sewing patterns |
| Know before using | The checklist does not rank products or validate fit; representative files, receiving-party checks, and physical validation remain necessary. | 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. | 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 | Apparel brands | Makers | Makers | Makers |
| Location or jurisdiction | Global | Global | Global | Global |
| Access | Open access | Open access | Open access | Free account |
| Format | Stitch Authority | Reference | Software | Community |
| Source type | Stitch Authority | First-party platform | Open-source project | Community database |
| Source and review | ||||
| What the source establishes | The linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface. | 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. | 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 15, 2026 | Jul 21, 2026 | Jul 21, 2026 | Jul 21, 2026 |
| Next review due | Jul 15, 2027 | Jan 17, 2027 | Jan 17, 2027 | Jan 17, 2027 |
| Inspect | ||||
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