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| Decision field | Open accessYarnSubGlobalRemove | Open accessYarn Database EU Dyers and MakersEuropean UnionRemove | Open accessCPSC Certificate eFilingUnited States · North AmericaRemove | Free accountRavelryGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Choose materials | Choose materials | Check standards | Choose materials |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Yarn | Yarn | Standards | Yarn |
| Best for | Building a substitution shortlist for a discontinued or unavailable yarn before checking quantity, availability, and a representative swatch | Finding independent EU yarn or fibre dyers with off-Ravelry purchase routes | Planning the current CPSC certificate-data handoff for regulated imports with the importer, finished-product certifier, customs broker, and entry records | Broad pattern, yarn, and project research |
| Know before using | A suggested match is a data-based shortlist, not proof that the yarn suits the pattern or maker. Records can be incomplete or wrong, price bands are approximate, availability varies by country and seller, and shade-level matching is unavailable. YarnSub says affiliate status does not change suggestions, but equally rated matches are ordered by brand popularity. Confirm required gauge, total length, fibre behavior, construction, care, colour, dye lot, accessibility, price, availability, and seller terms, then make and assess a representative swatch before committing. | It is one curator's intentionally selective, off-Ravelry-oriented database, inventories change, and paid supporters can receive rotating priority placement; verify availability, fibre claims, shipping, and terms directly. | The portal does not decide whether a product requires certification, identify the correct rules or certificate data, classify an entry, replace the current 16 CFR part 1110 text, or reconcile a filing to an actual shipment. Effective dates and workflows differ by entry route; use current CPSC, CBP, customs, product-safety, and legal review. | 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. |
| Practical access | ||||
| For | Makers | Makers | Apparel brands | Makers |
| Location or jurisdiction | Global | European Union | United States · North America | Global |
| Access | Open access | Open access | Open access | Free account |
| Format | Reference | Directory | Reference | Community |
| Source type | First-party platform | Community database | Government guidance | Community database |
| Account, payment, and exit | ||||
| Access scope | Maker comparing a replacement for a named yarn before buying. | Not yet reviewed at this level. | Not yet reviewed at this level. | Knitter or crocheter researching patterns and yarns while keeping notebook records. |
| Before an account | Search a named yarn, inspect suggested substitutes, and filter by fibre and approximate price band without creating an account. | Not yet reviewed at this level. | 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. |
| Free-account boundary | The checked core substitution route does not require an account, and the FAQ does not offer user-entered yarn records. | Not yet reviewed at this level. | 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. |
| Payment boundary | No subscription is presented for the core route. Affiliate retailer links and optional donations help fund the site; equal-rated matches are ordered by brand popularity. | Not yet reviewed at this level. | 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. |
| Cancellation or exit | There is no account or recurring plan to cancel for the core route. The newsletter has a separate unsubscribe link. | Not yet reviewed at this level. | 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. |
| Saved work and data | YarnSub does not expose an API and does not accept user-entered yarn details. Use the data-issue link on a yarn page for corrections. | Not yet reviewed at this level. | 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. |
| Source and review | ||||
| What the source establishes | 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 suggestions. Result filters can exclude animal, animal-derived, synthetic, or plant fibre groups and use a subjective $ to $$$$$ price indicator. The site does not accept user-entered yarn details, individual shade cards, or expose an API. Each yarn page provides a data-issue route. | The individually researched database offers free listings and sortable yarn, fibre, designer, editor, accessory, and location views; the EU page spans multiple countries and direct seller profiles. | CPSC operates the eFiling portal with role-specific importer, broker, applicability, Product Registry, regulated-product, laboratory, ACE, FAQ, video, and document-library routes. The certificate final rule took effect July 8, 2026 for covered non-FTZ products, with separate timing for covered FTZ entries. | 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. |
| Linked page reviewed | Jul 28, 2026 | Jul 15, 2026 | Jul 16, 2026 | Jul 30, 2026 |
| Next review due | Jan 24, 2027 | Jan 11, 2027 | Oct 14, 2026 | Jan 26, 2027 |
| Inspect | ||||
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