Privacy Policy

• The tools themselves run locally on your device. Text, numbers and other values you type into a tool are never sent to us or stored on our servers.
• We do not require an account, and we do not ask for your name, email address or payment details to use this site.
• We display advertising through Google AdSense and other third-party advertising partners. These partners may use cookies and similar technologies to show ads that are relevant to you.
• You can opt out of personalised advertising at any time using the links in the "Your Advertising Choices" section below, or by using the cookie banner shown when you first visit this site.

Information you enter into our tools. All calculations, conversions and formatting happen in your browser using JavaScript. The content you enter is processed on your device only and is never transmitted to, or stored by, us.

Cookie preferences. If you make a choice on our cookie banner, we store that choice in your browser's local storage (under the key toolkit-cookie-consent) so that we do not ask you again on every visit. This value stays on your device and is not sent to our servers.

Server and hosting logs. Our hosting provider (Cloudflare Pages) automatically records standard technical request information — such as IP address, browser type, referring page, requested URL and timestamps — for security, abuse prevention and operational purposes. These logs are retained for a limited period and are not used to identify you personally.

Aggregate analytics. We may collect aggregated, non-identifying statistics about how the site is used (for example, which tools are most popular) in order to improve the service.

Cookies are small text files placed on your device by a website. We do not set our own advertising or tracking cookies. However, third-party vendors — including Google — use cookies, web beacons and similar technologies to:

• serve advertisements on this website and measure their performance;
• serve ads based on your prior visits to this website and/or other websites on the internet;
• limit how often you see the same advertisement; and
• detect and prevent fraudulent or invalid advertising activity.

You can control or delete cookies through your browser settings. Most browsers let you block third-party cookies entirely. Please note that blocking cookies may affect how advertisements are displayed, but it will not affect the functionality of our tools.

This website uses Google AdSense, an advertising service provided by Google LLC, to display advertisements and to fund the free tools we offer. Google AdSense and its advertising partners use cookies to serve ads based on your prior visits to this website and other websites.

Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the internet. Google may also use your advertising identifier and approximate location (derived from IP address) for ad delivery, measurement and fraud prevention.

The following third-party services may also place cookies or similar technologies on your device when you visit this site, and each operates under its own privacy policy:

• Google AdSense and Google advertising products — Google Privacy Policy and How Google uses cookies in advertising
• Cloudflare (hosting, content delivery and security) — Cloudflare Privacy Policy

Third-party advertising vendors may also participate in industry opt-out programmes that give you additional control over interest-based advertising, as described in the next section.

You are not required to accept personalised advertising in order to use this website. You can opt out at any time using any of the options below:

• Google Ads Settings: turn off personalised advertising from Google at google.com/settings/ads. You can also review Google's ad settings across your devices at adssettings.google.com.
• Industry opt-out tools: opt out of interest-based advertising from many third-party vendors at aboutads.info/choices (Digital Advertising Alliance), networkadvertising.org/choices (NAI) or, in the European Union, youronlinechoices.eu.
• Device settings: on mobile devices you can reset your advertising identifier or limit ad tracking in your device settings.
• Browser settings: block or delete third-party cookies in your browser. Note that opting out does not remove ads — you will still see non-personalised advertisements.

Where required by applicable law (for example, under the GDPR in the European Economic Area and the UK, or equivalent regulations elsewhere), we ask for your consent before non-essential cookies for advertising purposes are used, and we rely on your consent as the legal basis for that processing. When we process technical log data for security and fraud prevention, we rely on our legitimate interest in keeping the website available and secure.

You can change or withdraw your cookie consent at any time by clearing the saved preference in your browser (see the "Cookie preferences" section above), after which the banner will appear again on your next visit.

Depending on where you live, you may have the right to access, correct, delete or restrict the processing of your personal information, to object to processing, and to data portability. California residents have rights under the CCPA/CPRA, including the right to know what personal information is collected and the right to opt out of the "sale" or "sharing" of personal information.

Because our tools run locally in your browser and we do not maintain user accounts, we generally do not hold personal information that can be tied back to you. If you wish to exercise a right in relation to data processed by our advertising partners, please contact those partners directly using the links in Section 4.

We retain technical and aggregate data only for as long as it is needed for the purposes described in this policy. We use HTTPS encryption in transit and reputable infrastructure providers, but no method of transmission or storage is completely secure, and we cannot guarantee absolute security.

Our service providers, including Google and Cloudflare, may process and store data in countries other than your own, including the United States. Where required, these providers rely on appropriate safeguards such as standard contractual clauses to protect the transfer of personal data.

This website is not directed to children under the age of 13, and we do not knowingly collect personal information from children. If you believe that a child has provided personal information to us, please contact us and we will take reasonable steps to remove it.

Our website may link to external websites that we do not operate. We have no control over and assume no responsibility for the content, privacy policies or practices of any third-party websites or services. We encourage you to review the privacy policy of every site you visit.

We may update this Privacy Policy from time to time to reflect changes in our practices or legal requirements. When we do, we will revise the "Last updated" date at the top of this page. Continued use of the website after an update constitutes acceptance of the revised policy.

If you have questions about this Privacy Policy, or you would like to exercise any of the rights described above, please contact us through the details on our Contact page. We aim to respond to all legitimate requests within 30 days.