14 free tools · no sign-up · nothing uploaded
Small tools for the things
you do every day
Work out a percentage, check how old you are to the day, see what a loan actually costs, count the words in an essay, or shrink a photo that's too big to upload. Everything runs in your browser and none of it asks for your email.
Most used
All tools →Browse by category
Why these and not the other hundred tool sites
Your data never leaves your device
There is no server doing the maths. Text you paste, photos you resize and passwords you generate are processed by your own browser and disappear when you close the tab. That's not a promise — it's just how the tools are built.
The answer, and why it's the answer
A number on its own is easy to mistrust. Every calculator shows the formula it used and what the result means, so you can check it, explain it to someone else, or spot when you've typed the wrong thing.
Fast on a bad connection
Pages are static HTML with a few kilobytes of JavaScript. No frameworks, no spinners, no cookie wall before you can use the thing you came for.
Free, and honest about why
The tools are funded by ads placed around the content — never inside it, never disguised as buttons. No paywalls, no "upgrade to export", no account.
From the blog
All articles →How to Choose a Password That Actually Holds Up
Most password advice is twenty years out of date and made things worse. Here's what genuinely protects an account, in the order that matters.
HealthBMI: What the Number Means and What It Definitely Doesn't
BMI was invented in the 1830s to describe populations, not people. Here's what it's genuinely useful for, where it fails, and what to measure instead.
MoneyWhat a Loan Actually Costs (And Why the Monthly Payment Hides It)
Lenders quote the monthly payment because it's the smallest number they can show you. Here's how to see the real cost of borrowing before you sign.