Privacy Policy

Last updated: August 17, 2026

Convert369 is built around one simple idea: your files are yours. This page explains, in plain language, what happens to your data when you use this site, what we collect, and what we never see.

The short version

Every conversion, calculation, and file operation on Convert369 runs entirely inside your own browser using JavaScript. When you upload a CSV, an Excel file, a ZIP archive, or paste text into any tool, that file is processed on your device and never leaves it. We don't have a server that receives your files, so we can't read them, store them, or lose them in a breach, because we never had them in the first place.

Information we don't collect

We do not collect, upload, or store the contents of any file or text you convert, compress, format, or compare using our tools. This includes CSV data, JSON payloads, Excel sheets, XML documents, ZIP contents, and any text pasted into an input box. All of it stays on your device.

Information stored in your browser

To make the site more convenient, a few small preferences are saved locally in your browser using localStorage. This data never leaves your device and is not sent to us:

• Favorite tools, so your starred tools show up in the navigation menu.
• Recently used tools, so you can quickly get back to what you were working on.
• Theme preference (light or dark mode).

You can clear this at any time by clearing your browser's site data for Convert369.

Server and hosting logs

Like virtually every website, our hosting provider automatically logs basic technical information for security and performance purposes, such as your IP address, browser type, device type, and the pages you request. We use this only in aggregate to understand traffic and keep the site running, not to identify individual visitors.

Cookies and advertising

Convert369 may display ads served by Google AdSense and other third-party advertising networks. These partners may use cookies, web beacons, or similar technologies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to this site and/or other sites on the internet.

You can opt out of personalized advertising by visiting Google Ads Settings, or opt out of third-party vendor use of cookies for personalized advertising by visiting www.aboutads.info.

Third-party links

Some pages may link to external resources or fonts (for example, Google Fonts, used to load the site's typefaces). These third parties operate under their own privacy policies, which we encourage you to review.

Children's privacy

Convert369 is not directed at children under 13, and we do not knowingly collect personal information from children.

Changes to this policy

We may update this policy from time to time as the site evolves. Any changes will be posted on this page with an updated "last updated" date.

Contact us

If you have any questions about this privacy policy, reach out via our Contact page.