Handyman Toolkits

Handyman Toolkits is a free, browser-based hub of construction calculators for contractors, tradespeople, and DIY builders. There's no login, no upload, and no backend — every calculation runs locally in the browser, so project inputs never leave the device. The catalog covers real field workflows across concrete, masonry, paint, tile, flooring, drywall, framing, roofing, electrical, and rebar/BBS (Bar Bending Schedule) work, with more trades being added in stages. Each calculator is built around quick entry, clear unit switching (imperial/metric), printable results, and export where it's useful — not a generic form wrapped around a formula. It's installable as a PWA, works offline once loaded, and is aimed at people who need a fast, trustworthy answer on a job site or at a desk without creating an account or worrying about where their numbers are going.