Yarn Ref — Your Daily Reference Guide
Access industry-standard data for the most common weaving yarns instantly. No more flipping through binders or searching websites.

WPI: Wraps Per Inch for weight classification.

YPP: Yards Per Pound for yardage and cost estimation.

Plain Weave EPI: Recommended sett for balanced plain weave.

Twill Weave EPI: Recommended sett for twill structures.

Coverage: Includes Pearl Cotton (3/2, 5/2), Unmercerized Cotton (10/2, 8/2), Linen (16/2, 40/2), Spun Silk, Carpet Warp, and more.

Warp Calc — Professional Project Planning
Calculate your warp requirements before you touch the loom. Enter your dimensions and let ThreadTone handle the math.

Inputs: Width in reed, ends per inch, woven length, shrinkage percentage, and loom waste.

Results: Total ends, warp length in yards, and total yarn required.

Accuracy: Accounts for shrinkage applied to woven length with loom waste added on top.

Sett Calc — Perfect Density Every Time
Avoid structural errors and density issues. Select your weave structure and get the correct Ends Per Inch (EPI) instantly.

Structures: Plain Weave, Twill, and Satin.

Formulas: Professional calculations based on your WPI input.

Clarity: Large, unmistakable results for quick reference in the studio.

Drafting — Interactive Pattern Design
Map out warp-over-weft intersections on an 8x8 grid. Visualize your patterns before you sit at the loom.

Interactive Grid: Tap to fill or clear cells (warp up/down).

Reset: Clear the entire grid with a single tap to start over.

Versatility: Sketch threading sequences, visualize tie-ups, and test pattern ideas on the go.

Why ThreadTone?

Purpose-built: Every feature exists to help you weave better.

No Clutter: No social feeds or ads — just pure professional tools.

Instant Results: Real-time updates as you type your data.

Offline Access: Works anywhere, from the studio to fiber festivals, with no internet required.