numerotools

About

Simple tools that do one job well

NumeroTools is a free collection of counters, randomizers, calculators, text tools and timers. Each one opens instantly, works on any device and remembers where you left off.

Why NumeroTools exists

Most online counters and calculators sit behind pop-ups, sign-up walls or cluttered pages. NumeroTools takes the opposite approach: open the page and the tool is ready — no account, no install and no paywall.

We focus on small, everyday jobs and try to do each one properly: tallying people at a door, keeping score in a cricket match, tracking rows in a knitting pattern, picking a fair random winner, checking a word count before you submit, or timing intervals at the gym.

What we care about

Ready in a second

Every tool is a single page that loads once and works straight away on a phone, tablet or desktop.

Your data stays with you

Tools run in your browser. Counts, text and settings are saved on your device — nothing you type is uploaded to us.

Picks up where you left off

Close the tab by accident and your count, text or project is still there when you come back.

Results you can check

Calculators show their working, and random generators can exclude repeats so draws stay fair.

Built for touch and keyboard

Large tap targets for one-handed counting on a phone, and keyboard shortcuts on a desktop.

Free, with nothing locked

There is no paid tier. Ads cover hosting and the time it takes to build new tools.

The toolbox

20 tools in five groups, with more on the way.

Counters

9 tools

Randomizers

6 tools

Number · Letter · Words · Object · Color · Quote

Calculators

2 tools

Text tools

2 tools

Timers

1 tool

How NumeroTools is funded

NumeroTools is free to use and supported by advertising. Ads pay for hosting and for building and testing new tools. They never unlock features — every tool is complete for everyone.

For details on ads, cookies and what is stored on your device, read our Privacy Policy and Terms of Use.

Missing a tool?

Tell us what you count, pick or calculate. The most-requested ideas become new tools — and if a result looks wrong, we want to know.