Your inputs stay yours.

Calculator and developer-tool inputs stay in your browser and are not submitted to our server. Avoid pasting active passwords, credentials, or sensitive data. Input values are not stored across visits.

Device access

Camera video, microphone recordings, keyboard events, and mouse events stay in browser memory. Camera and microphone permissions are requested only after Start. Press Stop or close the page to end access. Keyboard events are observed only inside the focused test area.

Connection tests

Starting a network or latency test sends requests to Cloudflare, which receives your IP and connection information. A full speed test uses up to 15 MB of download data and 5 MB of upload data, plus small timing requests. Read Cloudflare’s privacy policy. Copy and Share run only when selected; your device handles the destination you choose.

Preferences and hosting

Your theme preference is saved locally on this device. Fonts use your system defaults; no third-party font request is needed. The hosting provider can process operational request logs and controls site-sharing access. EveryCalc adds no analytics or advertising cookies.