Privacy & Cookie Policy
Last updated: February 2026
Your images stay on your device
All image processing in GridPrint happens entirely in your browser. Your images are never uploaded to any server. No account is required. Your files never leave your device.
Analytics
We use PostHog (EU cloud) for anonymous, aggregated usage analytics to understand how people use GridPrint and improve the product. Analytics cookies are only set if you explicitly accept them via the cookie consent banner. No personal data is collected — we track page views and feature usage counts, not individual behavior.
Error tracking
We use Sentry to capture JavaScript errors and crashes. This helps us find and fix bugs. Sentry is considered strictly necessary for the operation of the service and does not require consent. Error reports may include your browser type and the page URL, but never your images or personal data.
Local storage
GridPrint stores your language preference, saved presets, and cookie consent choice in your browser's local storage. This data never leaves your device and is not shared with any third party.
Cookies used
If you accept analytics cookies, PostHog sets session cookies to count unique visits. These cookies are first-party and are only used for aggregated statistics. If you decline, no analytics cookies are set.
Your choices
You can accept or decline analytics cookies at any time. Use the "Cookie settings" link in the footer or the app menu to change your preference. Declining does not affect any functionality — GridPrint works fully without analytics.