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| Decision field | Free downloadbluesign System Partner ListsGlobalRemove | Open accessYarnSubGlobalRemove | Free downloadSeamly2DGlobalRemove |
|---|---|---|---|
| Decision fit | |||
| Primary job | Check standards | Choose materials | Find patterns & fit |
| Area | Materials | Yarn | Patterns & fit |
| Best for | Starting a bluesign-aligned supplier check | Replacing a discontinued or unavailable yarn | Digital pattern drafting |
| Know before using | Partner status is not a blanket product claim; use the current official list and confirm the exact facility, material, process, or chemical-input scope. | 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. | 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. |
| Practical access | |||
| For | Apparel brands | Makers | Both |
| Location or jurisdiction | Global | Global | Global |
| Access | Free download | Open access | Free download |
| Format | Directory | Reference | Software |
| Source type | Official registry | First-party platform | Open-source project |
| Source and review | |||
| What the source establishes | bluesign publishes current system-partner lists and approved-input references that can support facility, material, chemical, dyeing, and finishing checks. | 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. | 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. |
| Linked page reviewed | Jul 15, 2026 | Jul 21, 2026 | Jul 21, 2026 |
| Next review due | Oct 13, 2026 | Jan 17, 2027 | Jan 17, 2027 |
| Inspect | |||
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