GmCat Toolbox

Helpful tools are brewing.

A collection of free, simple web tools that just work, with no sign-up, no clutter, and a friendly cat keeping you company.

Coming soon

What we're brewing

  • CalculatorsEveryday math, percentages, tips, and splitting the bill.
  • Currency converterQuick conversions with up-to-date rates.
  • Spell checkerPaste your text and catch typos fast.
  • Unit converterCups to grams, miles to kilometers, and more.
  • Word & character counterHandy for posts, essays and bios.
  • And moreGot an idea? Tell us on X.

Everything in the Toolbox will be free to use in your browser.

GmCat holding a warm mug