Privacy policy

The files you open on TrackLoupe never leave your device. This page explains the little data the site does handle.

Last updated: 21 October 2026.

In short

• Your files are read in your browser. Their content, their names and their coordinates are never sent to us or to anyone else.
• The site has no accounts, cookies, analytics or ads.
• Like any website, it is delivered by a hosting provider, Cloudflare, which processes your IP address to send you the pages.
• If you turn on the base map of the viewer, your browser asks OpenFreeMap for map images of the area you are looking at.
• If you send us an email, we receive your message and your email address.

Who is responsible

The provider of TrackLoupe is responsible for the data described here:

Your files

Every tool reads your files with JavaScript inside your browser, in a background worker. No part of a file, its name, its coordinates or the statistics worked out from it is sent to a server. An automated test checks this for every tool and every file format, in three browsers, whenever the site changes. You can check it too: open a tool, turn on airplane mode, and then open a file. It works the same.

When you visit the site

Cloudflare, Inc. hosts the site and delivers it through its network. To send you a page, Cloudflare processes your IP address and the details of the request, such as the address of the page, the time and the type of browser. It uses them to deliver the site and to protect it from attacks. Cloudflare acts as our processor under its data processing agreement.

The legal basis is our legitimate interest in delivering a working and secure website (Article 6(1)(f) of the GDPR). We do not use these data to identify visitors. Cloudflare stores data mainly in the United States and the European Economic Area. For transfers to the United States it relies on its certification under the EU-U.S. Data Privacy Framework, and on standard contractual clauses if that certification lapses, as its privacy policy explains.

The base map

The viewer draws your tracks on a plain background and contacts no map service. Only when you select Show base map does your browser ask OpenFreeMap, run by Hyperknot Software Kft. in Hungary, for the map images of the area on screen. That request tells OpenFreeMap the approximate area of your tracks and your IP address. Your file, its name and its points are never sent.

The legal basis is your consent, which you give by selecting the button after the page has explained what it sends (Article 6(1)(a) of the GDPR). Select Hide base map to stop. According to its privacy policy, OpenFreeMap keeps access logs without IP addresses for seven days, and its error logs can hold the IP address and the requested address. OpenFreeMap also uses Cloudflare to deliver the map.

What is stored on your device

TrackLoupe sets no cookies. The viewer remembers two choices in your browser's local storage: trackloupe.units, for kilometres or miles, and trackloupe.baseMap, for whether you turned the base map on. They never leave your device, and clearing your browser's site data removes them.

If Cloudflare suspects automated traffic, it can show a security check and set a cookie such as cf_clearance to remember that you passed it. These cookies are strictly necessary for security and are described on Cloudflare's cookie page.

When you email us

Messages to [email protected] reach us through Cloudflare Email Routing, which forwards them to our mailbox. Cloudflare does not store or read the content of the messages. It keeps the sender, the recipient and the subject of each message in our account's statistics for 31 days. We keep your message and your address as long as we need them to answer you and to deal with any follow-up. The legal basis is our legitimate interest in answering the people who write to us (Article 6(1)(f) of the GDPR).

Our mailbox is on Gmail, a Google service, so the messages are stored there, under its privacy policy.

If you attach a file to an email, that file leaves your device. Only attach one if you are happy to share it.

What we do not do

We do not sell data, build profiles or track visitors across sites. If the site ever adds analytics or ads, this policy will say so before they start.

Your rights

You can ask us for access to the data we hold about you, and for its correction, deletion or transfer. You can also object to its use, ask us to restrict it, and withdraw your consent at any time. Since the site keeps almost no data, most requests will be about emails you sent us. Write to [email protected].

You can also complain to a data protection authority. In Portugal it is the Comissão Nacional de Proteção de Dados (CNPD), and you can also turn to the authority of the country where you live.

Changes to this policy

When this policy changes, the date at the top changes too.