Privacy Policy
Last updated: November 2026
Images converted with Kepkonverter are never uploaded to an external server. Every conversion, resize, crop and compression happens exclusively on your own device, inside your browser (client-side). Nobody else can ever access your private photos and files.
1. Data Controller
The operator and data controller of this website is Képkonverter.hu.
Contact e-mail: hello@kepkonverter.hu.
2. What data we collect and why
- Image files: We do not collect, store or transmit any image files. Image processing takes place entirely in your browser's memory.
- Local settings (Local Storage): Your browser's local storage keeps your chosen theme (light/dark mode), your cookie consent choice and – if you joined the PRO waitlist – the e-mail address you entered, so you don't have to type it again. These stay on your device; clearing your browser data removes them at any time.
- PRO waitlist (optional): If you sign up, we store your e-mail address, the feature you were interested in and the time of signup – nothing else (not even your IP address). We use it only to tell you when Kepkonverter PRO launches; we don't share it with third parties or send you anything else. We keep it until the launch notification has been sent, then delete it. It is stored on Cloudflare, Inc. infrastructure (Cloudflare D1 database), acting as our data processor.
- Anonymous aggregate statistics: We keep anonymous counters of the number of conversions, format pairs (e.g. HEIC ➔ JPG) and editor tools used. They contain no personal data and cannot be linked to you.
- Analytics (Google Analytics 4): We collect anonymized statistics about visitor counts, feature usage and page performance in order to improve the quality of the service.
- Cookies & consent: Analytics cookies are only set after you accept them in the consent banner. Until then, Google Analytics runs in consent mode without cookies. We do not serve third-party advertising cookies.
3. Legal basis for processing (GDPR)
Processing is based on Article 6(1)(f) of the GDPR (the controller's legitimate interest in maintaining a secure, stable and user-friendly website) and, in the case of cookies, on your consent (GDPR Article 6(1)(a)).
For the PRO waitlist, the legal basis is your consent (GDPR Article 6(1)(a)), which you give by signing up. You can withdraw it at any time, without giving a reason, by writing to hello@kepkonverter.hu; we will then delete your e-mail address. Withdrawal does not affect the lawfulness of processing before it.
4. Your rights and data deletion
Under the EU General Data Protection Regulation (GDPR) you have the right to request information about the processing of your personal data, and to ask for its rectification, erasure or restriction.
For any privacy question or deletion request, please contact us at hello@kepkonverter.hu.
If you believe your data is processed unlawfully, you can lodge a complaint with the Hungarian National Authority for Data Protection and Freedom of Information (NAIH, Falk Miksa utca 9–11, 1055 Budapest, naih.hu) or with the data protection authority in your own EU country.
5. Kepkonverter Chrome extension
This section covers the Kepkonverter browser extension available in the Chrome Web Store. Everything above about images applies to it too: it converts images on your own device and never uploads them anywhere.
- Images: Images you drop into the extension, or right-click on a web page, are converted in your browser and saved to your downloads folder. For a right-click conversion your browser loads the image from its web address, just as it does when showing the page; the image is not sent to us or to anyone else.
- Stored on your device (chrome.storage.local): a random anonymous ID created on first use, the number of successful conversions, whether you have answered the one-time request to rate the extension (shown after 5 conversions), and whether you have turned usage statistics off. Nothing else is stored: no images, file names, web addresses or browsing history.
- Usage statistics (Google Analytics 4): the extension sends anonymous events with the random ID: popup opened, conversion done (target format and number of images), right-click conversion done or failed (target format), and your answer to the rating request. They never include images, file names, web addresses or browsing history. Google Analytics 4 does not log or store IP addresses. Event-level data is kept for 2 months, data linked to the random ID for 14 months after its last use. You can turn this off at any time by unticking "Send anonymous usage statistics" at the bottom of the popup; the extension then sends nothing and deletes the random ID.
- Permissions: "contextMenus" for the right-click menu, "downloads" to save the converted file, "storage" for the values listed above. The extension cannot read or change the pages you visit.
- Links: the popup links to kepkonverter.hu and to our Buy Me a Coffee page. These open only when you click them, and that site's own privacy policy applies there.
- Deletion: removing the extension deletes the ID and the counters from your device.