Legal
The simple rules for using NumeroTools. The short version: the tools are free, use them for anything reasonable, and double-check results that really matter.
Last updated: 29 September 2026
These Terms of Use apply to your use of numerotools.com and every tool on it (together, “NumeroTools”). By using the site you agree to these terms and to our Privacy Policy. If you don’t agree, please don’t use the site.
All tools are free to use, with no account required. You may use them for personal, educational and commercial purposes — counting stock, running a class raffle, checking a word count for a client or timing a workout.
You may link to any page on NumeroTools and share the results you create. Please don’t copy the site’s design, text or code, present the tools as your own, or load them inside another website in a frame without our written permission.
We build and test every tool carefully, and the calculators show their working so you can check it. Even so, results depend on what you enter and on your browser, and mistakes can happen. All tools are provided for general information and convenience only.
If you spot a wrong result, please tell us and we’ll fix it.
Our randomizers use the random-number functions built into your browser. They are well suited to games, classrooms, giveaways, decisions and creative prompts. The Random Number Generator uses your browser’s cryptographic random source.
They are not certified for regulated gambling, official lotteries or prize draws where the law requires an audited random process, and they must not be used to create passwords, keys or other security secrets.
Tools save your progress only in your own browser’s local storage (see our Privacy Policy). You are responsible for keeping copies of anything important — use the export buttons where available. Clearing your browser data, using a private window, or switching device or browser will remove or hide saved progress, and we cannot recover it.
When using NumeroTools you agree not to:
The NumeroTools name, logo, site design, text, graphics and code belong to NumeroTools and are protected by copyright and other laws. The results you generate — counts, numbers, word lists, colors, calculations — are yours to use freely. Quotes shown by the Random Quote Generator remain the work of their original authors.
NumeroTools is funded by ads, which are provided by third parties such as Google. We don’t control and aren’t responsible for the content of ads or of other websites linked from NumeroTools. Your dealings with advertisers are solely between you and them.
We work to keep NumeroTools available and fast, but we don’t guarantee that it will always be available, uninterrupted or error-free. We may add, change or remove tools or features at any time without notice.
NumeroTools is provided “as is” and “as available”, without warranties of any kind, whether express or implied, including warranties of accuracy, fitness for a particular purpose and non-infringement, to the fullest extent permitted by law.
To the fullest extent permitted by law, NumeroTools will not be liable for any indirect, incidental, special or consequential loss, or for any loss of data, profits or business, arising from your use of — or inability to use — the site or its tools, including reliance on any result. Because the tools are free, our total liability for any claim relating to the site is limited to zero. Nothing in these terms limits liability that cannot be limited by law.
We may update these terms from time to time. The “Last updated” date at the top shows when they last changed. By continuing to use NumeroTools after a change, you accept the updated terms.
Questions about these terms? Email [email protected] or use our contact page.