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| Decision field | Open accessKnitting Needle to Crochet Hook Size ChartGlobalRemove | Free accountRavelryGlobalRemove | Open accessPattern Test Brief TemplateGlobalRemove | Open accessFreeSewingGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Learn techniques | Choose materials | Find patterns & fit | Find patterns & fit |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Yarn | Yarn | Patterns & fit | Patterns & fit |
| Best for | Finding the current CYC hook and needle aliases that share one known nominal metric diameter before confirming project gauge | Broad pattern, yarn, and project research | Planning a sewing, knitting, or crochet pattern test | Custom-fit home sewing patterns |
| Know before using | A shared nominal diameter does not make a knitting needle and crochet hook interchangeable or predict equal gauge or fabric. The reference is not a physical measurement, manufacturer inspection, UK or Canadian conversion, steel-hook chart, tool recommendation, yarn assignment, or project approval. | An account is required and community, publisher, designer, shop, yarn, project, and connected-app records can vary in currency and accuracy. The checked public pages do not establish API credential eligibility, current endpoints, scopes, rate limits, support, app quality, or a complete account export. Search results, ratings, favorites, and project examples do not establish pattern accuracy, yarn availability, seller reliability, fit, gauge, or project suitability. Confirm current developer terms, files, errata, license, purchase and refund terms, measurements, yarn details, and shop information with the responsible source. | The workflow is not a contract or quality certification; local legal duties and technical review may still apply. | 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. |
| Practical access | ||||
| For | Makers | Makers | Both | Makers |
| Location or jurisdiction | Global | Global | Global | Global |
| Access | Open access | Free account | Open access | Open access |
| Format | Stitch Authority | Community | Stitch Authority | Software |
| Source type | Stitch Authority | Community database | Stitch Authority | Open-source project |
| Account, payment, and exit | ||||
| Access scope | Not yet reviewed at this level. | Knitter or crocheter researching patterns and yarns while keeping notebook records. | Not yet reviewed at this level. | Not yet reviewed at this level. |
| Before an account | Not yet reviewed at this level. | Official about, apps, Goodies, login, and signup pages are public. The useful database, notebook, community, and API root require sign-in. | Not yet reviewed at this level. | Not yet reviewed at this level. |
| Free-account boundary | Not yet reviewed at this level. | A free account requires a valid email signup link and enables the database, notebook, directories, groups, and forums. The public Goodies page sends developers to an account-gated API group; it does not establish current credential eligibility, scopes, endpoints, rate limits, or support. | Not yet reviewed at this level. | Not yet reviewed at this level. |
| Payment boundary | Not yet reviewed at this level. | The core platform account is free. Individual patterns and other marketplace items may have separate provider-set prices; those purchases are not a user subscription. | Not yet reviewed at this level. | Not yet reviewed at this level. |
| Cancellation or exit | Not yet reviewed at this level. | The checked public about, login, and signup pages do not establish cancellation, deletion, or post-exit access. Verify the current in-account help before contributing records. | Not yet reviewed at this level. | Not yet reviewed at this level. |
| Saved work and data | Not yet reviewed at this level. | The Goodies page documents a stash spreadsheet and a Project Progress API JSON route, but it says exports are limited and does not establish one complete account export. Keep source files and critical records locally. | Not yet reviewed at this level. | Not yet reviewed at this level. |
| Source and review | ||||
| What the source establishes | Rechecked July 28, 2026. The lookup reproduces the current public Craft Yarn Council metric and U.S. alias rows, aligns hooks and needles only when their nominal millimetre value matches, and leaves missing rows or aliases unfilled. | Ravelry's official description identifies a user-driven database of knitting and crochet patterns and yarns, searchable directories, and a personal notebook. Community members and volunteer editors maintain database records. The current official Goodies page exposes an account-gated developer API route, a limited Project Progress API JSON export, and a stash spreadsheet; the official apps directory lists third-party apps that connect to Ravelry. | The linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface. | 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. |
| Linked page reviewed | Jul 28, 2026 | Jul 30, 2026 | Jul 15, 2026 | Jul 21, 2026 |
| Next review due | Jul 28, 2027 | Jan 26, 2027 | Jul 15, 2027 | Jan 17, 2027 |
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