Woodworking tools and resources. Open source always.

Woodworking Calculators

Free, browser-based woodworking calculators for planning real projects — cut lists, sheet layouts, joint geometry, and lumber estimates. No signups, nothing to install; every tool runs entirely in your browser.

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Box Builder

Cut list calculator for butt and mitre joint boxes. 3D preview, plan view, explode mode.

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Cut List Optimiser

Arrange pieces across standard sheet sizes to minimise offcuts and waste.

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Dovetail Calculator

Pin and tail spacing for hand-cut and router jig dovetails.

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Finger Joint Calculator

Exact jig settings for box joints — odd-count symmetric layout.

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Board Foot Calculator

Total board feet and lumber cost for your whole cut list.

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