What this site is
This is a personal, independently run website published under the name FreeToolsPoint. There is no company behind it, no office and no staff; it is maintained by one operator, and questions, corrections and tool requests all arrive at the same address: freetoolspoint@gmail.com.
The aim is narrow. Many online calculators give a number with no explanation of how it was reached, which makes an unexpected result impossible to check. Every tool page here states its formula or rule, the input ranges it accepts, worked examples with the output the code really produces, and what the tool cannot do.
What is here
The full list sits on the home page, grouped into five sets.
How the tools are built and checked
The arithmetic that several pages share lives in a few small JavaScript modules rather than being copied into each page. That code is covered by automated unit tests that assert exact expected values, including edge cases such as a February 29 birth date, a zero-interest loan, a fraction with a zero denominator and a clock time that daylight saving skips.
On top of that, automated browser tests open the real pages,
type into the real fields and read the real output, at both a
desktop width and a 390-pixel phone width. They also check that
an invalid input produces a readable message instead of
NaN or Infinity, and that no page
scrolls sideways on a phone.
The worked examples printed on each tool page are produced by running the same functions the page uses, so the numbers in the text and the numbers on screen come from one source. Where a category boundary comes from an outside body, the source is named: the adult BMI categories follow the WHO and CDC adult ranges.
Read calculation methods and corrections for the rounding rules, date handling and reporting process in detail.
How the site is funded
Advertising, through Google AdSense. The tools are free to use and there is nothing to buy, no paid tier and no affiliate selling at present. Advertising is the only reason the site can stay online. The ad script and Google Analytics, which counts visits, are the only third-party code loaded on these pages. The privacy policy describes what that involves, and the cookies and local storage section lists the cookies involved and the two tools that save anything in your browser's local storage.
What this site does not do
- There are no accounts, logins or profiles. Nothing you do here is tied to an identity.
- Tool inputs are not processed on a server. Calculations, image re-encoding and document text extraction run in your browser, so the values and files you choose stay on your device.
- No file you select is uploaded or kept. The browser reads it, the page works on it in memory, and your browser writes any download.
- The writing tools do not call an AI model. The prompt builder fills a template and the summarizer reuses your own sentences.
- No result is professional advice, and none of the pages claim independent expert review, awards or user numbers.
Corrections
If a result looks wrong, email the page address, the exact values you entered, the result you got and the result you expected, with your reasoning or a source. Please leave private documents and personal data out of the message. Reports that can be reproduced are fixed in the calculation or in the explanation, and the review date on the affected page is updated.
Reviewed October 1, 2026. Calculation methods and corrections · Contact.