Little utilities we needed ourselves and could not find a version of that was free, fast and not covered in adverts. They all run entirely in your browser.
Small, single-purpose things: a calculator that does one job properly, a converter, a checker,
a puzzle maker that gives you a sheet you can actually print. The rules we hold them to are the
ones we wanted from everybody else's version: free, no sign-up, no advert covering the
answer, no limit on how many times you can use it, no watermark on the printout, and the working
explained underneath rather than hidden.
Everything here runs in your own browser. Nothing you type into one of these tools is sent to
us or to anyone else.
There are 6 tools here so far, and there
will be more as we need them. If there is something you would find useful,
tell us, since the last few things on this site started that way.
Elsewhere on the site
If you came here for a calculator and stayed for something to do with your hands, the rest of
Final Boss Games is daily puzzles and small browser games: a
crossword, a cryptogram, a logic puzzle and a dozen others, new every morning, all free and all
playable without an account. There are large-print editions of the
printable ones, and a printable pack of the whole day.