Privacy Policy
This policy explains what StashGrid collects, what it does not collect, which third parties are involved, and how to opt out.
Last updated: September 10, 2026
The short version
- StashGrid has no accounts and no logins. You are never asked to register.
- What you type into a calculator is processed in your browser and is not sent to StashGrid's servers or stored by StashGrid.
- StashGrid uses Google Analytics to understand which pages are used, and Google AdSense to show advertising. Both set cookies and both receive some data about your visit.
- You can opt out of personalised advertising at any time using the links in the Your choices section.
What StashGrid does not collect
The calculators on this site run as JavaScript inside your browser. Salary figures, loan amounts, debt balances, health measurements, passwords, text you paste into converters, and any other values you enter into a tool are processed on your own device. They are not transmitted to StashGrid, not written to a StashGrid database, and not visible to the site's operator.
Some tools save your last-used settings in your browser's local storage so the page remembers them on your next visit. That data stays in your browser and can be cleared at any time through your browser's "clear site data" or "clear browsing data" controls.
StashGrid does not sell personal information, and does not share personal information with third parties except as described below.
What is collected, and by whom
| Service | Purpose | What it may collect |
|---|---|---|
| Google Analytics 4 Property G-M2KWCWMNCS |
Understanding which tools are used and how visitors move through the site | IP address (truncated by Google before storage), approximate location, device and browser type, pages viewed, time on page, referring site |
| Google AdSense Publisher ca-pub-3168650983890206 |
Serving advertising that funds the free tools | Cookies and similar identifiers used to serve and measure ads, including ads based on your prior visits to this and other websites |
| Formspree Contact form only |
Delivering messages sent through the contact page | Whatever you choose to put in the form, including any email address you supply so a reply can be sent |
| IONOS Web hosting |
Serving the website | Standard server access logs, which typically include IP address, timestamp, requested URL and user agent |
Advertising and cookies
Third-party vendors, including Google, use cookies to serve ads based on your prior visits to StashGrid or to 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.
You may opt out of personalised advertising by visiting Google Ads Settings. You can also opt out of a third-party vendor's use of cookies for personalised advertising at aboutads.info or the NAI opt-out page.
Opting out of personalised advertising does not remove ads. It means the ads you see are less likely to be based on your browsing history.
Types of cookies used
- Analytics cookies — set by Google Analytics to distinguish visitors and sessions.
- Advertising cookies — set by Google and its advertising partners to select and measure ads.
- Functional storage — browser local storage used by some tools to remember your last-used settings. This is not a cookie and is not transmitted anywhere.
You can block or delete cookies through your browser settings. Blocking cookies will not stop the calculators from working.
Visitors in the EEA, UK and Switzerland
Where required, advertising partners obtain consent for the use of cookies and similar technologies for personalisation and measurement before such cookies are set. If you are in a region where consent is required and you have not consented, you should see non-personalised advertising instead.
Visitors in California
StashGrid does not sell or share personal information as those terms are defined under the California Consumer Privacy Act. If you would like to make a request regarding personal information, use the contact page and it will be handled within the timeframes the law requires.
Your choices
- Opt out of personalised Google advertising: adssettings.google.com
- Opt out of third-party vendor cookies: optout.aboutads.info
- Opt out of Google Analytics across all sites: Google Analytics opt-out browser add-on
- Clear stored tool settings: use your browser's clear-site-data control for stashgrid.site
- Block cookies entirely: available in every major browser's privacy settings
Data retention
StashGrid does not hold a database of visitor data. Retention of the analytics and advertising data described above is controlled by Google under its own retention settings and policies. Contact-form messages are retained only as long as needed to answer them.
Children
StashGrid is a general-audience site and is not directed at children under 13. It does not knowingly collect personal information from children. If you believe a child has sent personal information through the contact form, use the contact page and it will be deleted.
External links and affiliate links
Some pages link to other websites, and some of those links may be affiliate or referral links, meaning StashGrid may earn a commission if you sign up or buy through them. Any such link is disclosed on the page where it appears. StashGrid is not responsible for the privacy practices of sites it links to — read their policies separately.
Changes to this policy
This policy may be updated as the site's tools or third-party services change. The "last updated" date at the top of this page reflects the most recent revision. Material changes will be noted on this page rather than applied silently.
Contact
Questions about this policy, or requests relating to your data, can be sent through the contact form.