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| Decision field | Open accessSewing Length ConverterGlobalRemove | Free + paidPattern TestersGlobalRemove | Open accessCrochet Stitch LibraryGlobalRemove |
|---|---|---|---|
| Decision fit | |||
| Primary job | Find patterns & fit | Find patterns & fit | Learn techniques |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Patterns & fit | Patterns & fit | Techniques & repair |
| Best for | Translating a length already stated by a pattern, controlled specification, sewing tool, or seam allowance | Coordinating an independent sewing-pattern test | Learning or identifying crochet stitches |
| Know before using | This is a length-unit translation reference. It does not identify the measured feature; select, approve, or change a seam allowance; establish a universal fraction; interpret an unstated cutting or stitching line; or replace the exact pattern version, controlled specification, material and seam evidence, sample, production method, equipment, tolerance, or release authority. | The interface and plan description do not prove tester reach, completion, feedback quality, fit validity, export quality, uptime, support, or suitability for an established release process. Measurements and photos can be sensitive personal data. Run a non-critical pilot, review the current privacy and service terms, define consent and photo rights, test exports and deletion, and keep pattern approval and release responsibility with the designer. | A foundational library, not yet an exhaustive stitch encyclopedia. |
| Practical access | |||
| For | Both | Apparel brands | Makers |
| Location or jurisdiction | Global | Global | Global |
| Access | Open access | Free + paid | Open access |
| Format | Stitch Authority | Software | Stitch Authority |
| Source type | Stitch Authority | First-party platform | Stitch Authority |
| Source and review | |||
| What the source establishes | NIST states that 10 millimetres equal 1 centimetre and that one inch is exactly 25.4 millimetres. The tool uses those relationships, displays rounded equivalents, exposes the size difference to the nearest 1/16 inch when converting to inches, and preserves valid value, source-unit, and target-unit state in the URL. | Pattern Testers currently offers application intake, tester selection, feedback, photos, approvals, issue tracking, revisions, a reusable tester directory, and release deadlines. The public pricing page shows a limited free plan and paid Pro and Business tiers. Its June 2026 privacy policy lists names, email addresses, measurements, photos, feedback, application history, and assignments among the data processed. | The linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface. |
| Linked page reviewed | Jul 30, 2026 | Jul 21, 2026 | Jul 15, 2026 |
| Next review due | Jul 30, 2027 | Jan 17, 2027 | Jul 15, 2027 |
| Inspect | |||
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