Privacy by design

Privacy Policy

Universal Age Calculator is designed so the core calculator can work without sending your birth date to a server. This policy explains what happens in your browser, what technical data may be processed when the site is delivered, and how this policy will change if analytics or advertising are introduced later.

Last updated: August 8, 2026universal-age-calculator.pages.dev
01

Information we process

The website is built as a browser-based utility. You can use the age calculator without creating an account, signing in, or providing a name, email address, phone number, or other account information.

When you enter a birth date, the page uses that value in your browser to calculate your exact age, birthday countdown, Hijri birth date, Western zodiac sign, Chinese zodiac result, lifetime statistics, and downloadable age card.

Core privacy principle

The selected birth date is not required to be uploaded to our server to produce calculator results.

02

Birth date calculations

The calculator's core calculations are performed with JavaScript in your web browser. The birth date you select is used temporarily by the page while you are using the calculator.

The current version of the site does not provide user accounts or a server-side birth-date history. Downloaded age cards are created locally in the browser using a canvas and are saved to your device only when you choose to download them.

The optional “Are you Muslim?” preference changes how certain results are presented. That preference is used for the current page session and is not intended as an account profile or persistent identity record.

Birth dateUsed in your browser
Downloaded cardCreated locally
Display preferenceSession-based
03

Browser storage

The site currently uses your browser's local storage to remember the light or dark appearance preference. This allows the selected theme to remain consistent when you return to the site.

ItemPurposeStored where
age-calculator-themeRemembers light or dark modeYour browser's local storage

You can remove this preference at any time by clearing site data in your browser. Clearing local storage does not affect the calculator's ability to work.

04

Technical data used to deliver the website

Like most websites, the infrastructure used to serve this site may process basic technical information needed to deliver pages securely and reliably. This can include information such as an IP address, browser type, device information, requested URL, time of request, and security-related signals.

This site is currently hosted using Cloudflare Pages. Cloudflare may process technical request data as part of providing hosting, security, performance, and network services. Such processing is separate from the calculator's local birth-date calculations.

Infrastructure vs. calculator data

Technical request data used to serve and protect the website is separate from the birth date used locally for calculations.

05

Cookies

The current calculator does not require an account cookie to perform age calculations. The site's own theme preference uses local storage rather than a traditional cookie.

Hosting and security providers may use technical mechanisms when necessary to protect or deliver the site. If we later add analytics, advertising, or other services that use cookies or similar technologies, this policy will be updated before those services are treated as part of the site's normal operation.

06

Analytics and advertising

At the date shown at the top of this policy, this policy does not claim that Google Analytics, Microsoft Clarity, or advertising services are active simply because they may be considered for a future version of the site.

If analytics or advertising is enabled later, we will update this page to identify the relevant services, the categories of data they process, and any choices available to visitors. Where required, an appropriate consent mechanism will also be added.

Future featureNo analytics or advertising is being claimed here as active.

This section explains how the policy will be updated if those services are introduced later.

07

Third-party services

The website depends on third-party infrastructure to be available on the internet. Cloudflare currently provides hosting and content-delivery infrastructure for the live site.

Links to external websites, if added in the future, will be governed by the privacy practices of those websites. We do not control the privacy policies of independent third parties.

08

Data retention

Because the core calculator does not require a server-side birth-date account or history, we do not maintain a calculator database of the birth dates you enter for normal calculations.

Technical infrastructure providers may retain network or security logs according to their own operational, legal, and security requirements. The retention of locally stored theme preferences is controlled by your browser and continues until you clear that site data or the browser removes it.

09

Children's privacy

The calculator is a general-purpose utility and is not designed to create profiles of children. It does not require an account or a child's name to calculate an age.

Parents and guardians should supervise a child's use of online services where appropriate. If future features begin collecting personal information, this policy will be reviewed before those features are introduced.

10

Your privacy choices

You can use the calculator without creating an account. You may clear the theme preference through your browser's site-data settings at any time, and you can choose not to enter a birth date if you do not wish to use the calculator.

Browser privacy controls, content blockers, and network privacy tools may provide additional controls over technical requests to web infrastructure.

01No account

Use the calculator without registering.

02Clear local storage

Remove the saved theme preference at any time.

03Browser controls

Use privacy and content-blocking tools you trust.

11

Changes to this Privacy Policy

This policy may be updated as the website develops. In particular, the policy will need to change if we introduce analytics, advertising, contact forms, user accounts, or other features that process information differently from the current browser-based calculator.

When changes are made, the “Last updated” date at the top of this page will be revised. Material changes should be reviewed before continuing to rely on an older copy of this policy.

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Your selected birth date stays in your browser while the calculator produces your results.

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