Privacy policy
Last updated: 4 November 2026
This policy explains what data Kubik processes. In short: your files never leave your device, we use no cookies and we do not collect personal data.
Your files
Files are converted directly in your browser using WebAssembly. They are not uploaded to our servers, not stored and not seen by anyone.
The result is created on your device and downloaded from it. After you close the tab, nothing remains except the files you saved.
Cookies and local storage
The site sets no cookies. Your browser's local storage keeps only the chosen theme and language; you can clear it at any time in the browser settings. To keep working offline, the browser cache also stores the site's own files (pages, scripts, conversion engines) — never your files.
Anonymous metrics
To improve the service we count anonymous events: page views, the pair of formats, the approximate file size and duration range, and the type of error. We never collect file names, contents, IP addresses or any user identifiers.
If your browser sends Do Not Track or Global Privacy Control, no metrics are sent at all. Raw events are deleted after 90 days; only daily totals are kept.
Server logs
The web server log keeps the time, the page address without parameters and the response status. IP addresses are shortened (the last part is zeroed), so they cannot identify you.
Third parties
The site loads no third-party scripts, fonts, analytics or advertising. All resources are served from our own domain.
Your rights
Because we do not store personal data, there is nothing to access, correct or delete. If you believe we hold data about you, write to us and we will answer within 30 days.
Questions about this document: vladimir@dusheiko.ru