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| Decision field | Free accountThreadloop Sewing Pattern DatabaseGlobalRemove | Free downloadSeamly2DGlobalRemove | Open accessPattern Test Brief TemplateGlobalRemove | Open accessKnittyGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Find patterns & fit | Find patterns & fit | Find patterns & fit | Find patterns & fit |
| Area | Patterns & fit | Patterns & fit | Patterns & fit | Yarn |
| Best for | Searching current and out-of-print sewing patterns | Digital pattern drafting | Planning a sewing, knitting, or crochet pattern test | Free editorial knitting patterns and techniques |
| Know before using | 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. | 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. | The workflow is not a contract or quality certification; local legal duties and technical review may still apply. | Free access does not grant commercial reproduction or sale rights; uses beyond one personal copy must be resolved with the designer or author. Knitty says it tries to avoid errors but disclaims responsibility for pattern and technique inaccuracies. Check the live page for corrections, verify gauge and measurements, and confirm permission before any commercial use. |
| Practical access | ||||
| For | Makers | Both | Both | Makers |
| Location or jurisdiction | Global | Global | Global | Global |
| Access | Free account | Free download | Open access | Open access |
| Format | Community | Software | Stitch Authority | Reference |
| Source type | Community database | Open-source project | Stitch Authority | First-party platform |
| Source and review | ||||
| What the source establishes | 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. | 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 linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface. | Knitty currently publishes web-only editorial issues containing original knitting and crochet patterns and articles. Its legal page states that patterns are free for one person's personal use, identifies each designer or author as the copyright holder, and explains that verified pattern corrections are posted in bright pink on the pattern page. |
| Linked page reviewed | Jul 21, 2026 | Jul 21, 2026 | Jul 15, 2026 | Jul 21, 2026 |
| Next review due | Jan 17, 2027 | Jan 17, 2027 | Jul 15, 2027 | Jan 17, 2027 |
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