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Compare textile resources.
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| Decision field | Free downloadSeamly2DGlobalRemove | Open accessTech Pack Release & Change-Control RecordGlobalRemove |
|---|---|---|
| Decision fit | ||
| Primary job | Find patterns & fit | Source production |
| Also useful for | No additional job recorded | No additional job recorded |
| Area | Patterns & fit | Production |
| Best for | Digital pattern drafting | Building and releasing a tech pack without silent defaults, duplicate sources, or ambiguous final files |
| Know before using | 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 record does not create product specifications, prove fit or manufacturability, select materials or construction settings, establish legal compliance, reproduce licensed standards, or replace qualified technical, production, quality, testing, sourcing, logistics, safety, compliance, and legal review. |
| Practical access | ||
| For | Both | Apparel brands |
| Location or jurisdiction | Global | Global |
| Access | Free download | Open access |
| Format | Software | Stitch Authority |
| Source type | Open-source project | Stitch Authority |
| Source and review | ||
| What the source establishes | 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 guide cites published ISO documented-information, garment-measurement, stitch, and seam sources plus current U.S. FTC textile and care-labeling guidance; it discloses ISO 10013:2021's current review stage, and its working record makes organization-specific requirements, suppliers, evidence, issues, and approvals explicit. |
| Linked page reviewed | Jul 21, 2026 | Jul 27, 2026 |
| Next review due | Jan 17, 2027 | Jul 27, 2027 |
| Inspect | ||
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