Weaving project management — from design file to finished cloth.

weftmark.com is a web platform for handweavers. Upload WIF drafts from any weaving software, track picks at the loom on a phone or tablet, manage your equipment and yarn inventory, and document your work from warp to finishing.

The requirements, architecture, and implementation of weftmark were developed collaboratively with Claude by Anthropic. Claude wrote the majority of the code through an iterative, conversation-driven process. We disclose this prominently because we believe AI development transparency matters.