Fast, browser-based calculators, converters, and planning tools — with an especially deep collection for sewing, knitting, crochet, handmade businesses, and everyday craft projects. Search for a tool or browse by category.
Strong starting points — including our deepest collection, for sewing, knitting, and crochet projects.
Pick a category to show only those tools, or use search above to search everything.
Everything runs in your browser.
Most tools run in your browser. We may use analytics and advertising.
Open any tool and start using it. No account needed.
The Useful Pages is a hand-built collection of single-purpose tools for everyday work, writing, calculations, coding, and money — plus a deliberately deep set for sewing, knitting, crochet, and handmade-business planning. More than half of the tools on this site (135 of 207) are for craft and handmade-project work. Pick a category, choose a tool, and get your answer without signing up or digging through a complicated app.
Use the search box to find a specific tool, the dropdown to jump on mobile, or the category cards to browse visually.
Yes. The tools are free to use and do not require a paid account.
No. Open a tool and use it right away without creating an account.
Most tools run in your browser, so the text or numbers you enter stay on your device unless a tool clearly says otherwise.
Yes. The site is designed to be usable on phones, tablets, laptops, and desktops.