Privacy policy

What happens to the numbers you type

Every barcode is drawn by code running inside your own browser. Numbers, product text, SKU lists and the files you download never travel to this site's servers. As a further safeguard, the site tells browsers to let its pages send data only to the two analytics services named below, and those receive page visits, never what you type.

One small preference can stay on your device: whether you like sizes shown in millimeters or inches. Your browser keeps it, nothing transmits it, and clearing your site data removes it.

What the web host sees

Cloudflare delivers the pages and blocks abuse. To do that it handles the basics of any web request: IP address, address requested, time and browser type, held in short-lived logs. Those logs get read only to investigate faults or attacks, never to profile anyone.

Cookies and analytics

Two web analytics services count visits: Google Analytics 4, run by Google, and Yandex Metrica, run by Yandex. Both set cookies, and neither ever receives what you type into a tool.

Google Analytics

Visits are counted with Google Analytics 4, a service of Google. It records which pages are opened, how a visitor arrived, the browser and device type, a rough location by city or country, and the time spent. It sets first-party cookies whose names start with _ga, kept for up to two years, so a return visit can be told apart from a new one. Google says Google Analytics 4 does not log or store IP addresses.

What you type into a tool is never sent. The address passed to Google is the page path only, without the fragment at the end of the address, where a tool can hold your number. The barcodes themselves are still drawn in your browser.

Google keeps the event data for the period set in the site's Google Analytics account, which Google allows up to 14 months. How Google uses that data is set out in How Google uses data when you use our partners' sites or apps.

Yandex Metrica

Yandex Metrica records the pages you open, the clicks and scrolling on them, how you arrived, your browser and device type, and a rough location. It sets cookies whose names start with _ym. Session recording, which replays a visit, is switched off. Like Google Analytics, it receives the page path only, never the fragment where a tool keeps your number. Yandex may process this data on servers outside the United States under its own terms, set out in Yandex Metrica's terms of use.

When analytics does not load

Neither service loads when your browser sends Global Privacy Control. Visitors from the European Economic Area, the United Kingdom and Switzerland get the pages without either service at all. Those places require consent before an analytics cookie is set, and the site shows no consent banner, so no analytics cookie or request leaves your browser there.

Turning analytics off

The button below turns both services off on this browser and clears their cookies and the visitor id Yandex Metrica keeps in your browser's storage. Every tool works the same with analytics off.

Turn off analytics on this browser

You can also block cookies in your browser's settings, or use the opt-out add-ons from Google and Yandex.

No ads today

The site shows no advertising, and no ad network sees your visit.

Advertising, if it is added later

The site may later show ads served by Google through its AdSense program. Nothing changes until this policy is updated to say that ads are live and the date at the top moves. When ads do run, the following will apply, and it is set out here now so you can see it in advance.

Google, as a third-party vendor, uses cookies to serve ads based on your earlier visits to this website or to other websites. Its advertising cookies let Google and its partners show you ads based on your visits to this site and other sites on the internet. Third parties, meaning Google and the ad partners it works with, may place and read cookies on your browser. They may also use web beacons, your IP address, device identifiers and other identifiers. Those measure which ads were shown and limit how often you see one.

You can turn off personalized advertising at Google's Ads Settings and at My Ad Center. The page How Google uses data when you use our partners' sites or apps explains what Google collects on such sites. It also explains how you can control it.

If you visit from the European Economic Area, the United Kingdom or Switzerland, a consent message will ask for your permission first. No personalized ad is shown and no ad cookie is set until you agree, and you can refuse. Ads will be marked as ads, and they will never sit next to a tool's inputs, preview or download buttons.

The terms of use and the editorial policy carry matching statements, so all three pages change together before any ad shows.

Pages on other websites

Source lists link out to documents held elsewhere, such as GS1 standards and Wikipedia articles. Once you follow one of those links, that website's own privacy terms apply.

If you write to us

A message to hello@upcgenerator.net stays on file for as long as the conversation needs. It stays for up to two years longer in case a correction it prompted is ever questioned. Your address never joins a mailing list and is never handed to anyone for marketing.

Visitors under 13

General audiences are the intended readers. No accounts, forms or profiles exist, and no personal information from children under 13 is knowingly collected.

Asking about your data

Depending on where you live, privacy law may give you the right to see, correct or delete personal information a site holds about you. That includes residents of California, Virginia, Colorado, Connecticut, Utah, Texas, Oregon and other US states. It includes the European Economic Area, the United Kingdom and Switzerland as well. Here, the only such information is any email you sent, and it is never sold or shared for advertising. Requests go to hello@upcgenerator.net and get an answer within 30 days.

When this policy changes

Any change moves the date at the top. Should advertising ever arrive, this policy will say so before it goes live. The advertising section above will then change from what may apply to what does.