Privacy Policy
We treat privacy as a product feature: the best data protection is never collecting it in the first place.
Zero Data Collection
No analytics scripts, no tracking pixels, no behavioral stats — we know nothing about you, happily.
Zero Accounts
No signup, no login, no email harvesting. Open, test, leave.
Zero Tracking Cookies
No tracking cookies, no third-party ad networks, no cross-site tracking.
Everything runs locally in your browser
Every test — solid colors, bleed, refresh rate, touch — executes locally in your browser. Neither the process nor the results are uploaded to any server. Pull the network cable and the site keeps working.
What lives in localStorage
We use browser localStorage for exactly three preferences: theme (light/dark), language (zh/EN) and wizard progress. This data stays on your device, and you can delete it anytime by clearing browser data.
How reports are generated
PDF reports are generated locally in your browser by pdf-lib and downloaded straight to your device. Report content never touches our servers, and we cannot access any report you create.
How share links work
Report share links encode data in the URL itself (hash/query parameters). The data lives only inside the link: whoever you send it to can see it; if you don’t send it, nobody can.
Changes to this policy
If this policy ever changes materially (e.g. optional anonymous statistics), we will announce it prominently on the site in advance and always keep “collect nothing by default”.
Privacy questions: hi@screentest.im.