Legal & Data Governance · Client-Side Measurements & Advertising Disclosures
Privacy Policy
Online Ruler Plus processes 100% of screen calibrations and object measurements locally in your web browser without uploading measurements or requesting camera permissions. This policy explains our local storage keys, Google AdSense advertising disclosures, cookie controls, and user privacy rights.
Effective Date: November 14, 2026 · Last Reviewed: November 14, 2026
01 · Local Measurement Execution
How are ruler measurements and calibrations processed?
All physical measurement operations on OnlineRulerPlus.com—including ISO/IEC 7810 ID-1 credit card alignment, screen diagonal density math, pixel-per-millimeter scaling, guide line span calculation, floating ruler rotation, and 180-degree protractor angle reading—execute strictly inside your local browser via static JavaScript and HTML5 Canvas. Your measured dimensions, screen calibration values, and saved workspace spans are never transmitted to or stored on Online Ruler Plus servers.
02 · Browser Local Storage
What data is saved in window.localStorage?
To remember your calibrated scale and preferences across visits without creating a user account, Online Ruler Plus stores settings locally under scoped window.localStorage keys: orp:calibration:v1 (display density profiles), orp:preferences:v1 (selected unit, visible ruler edges, and strip thickness), orp:history:v1 (up to 15 user-saved span entries), orp:theme (light or dark theme preference), and orp:locale:v1 (language preference). You can clear these entries at any time via Reset Calibration, Clear History, or your browser site-data settings.
03 · Permissions & Direct Support Email
Does Online Ruler Plus access device sensors or collect PII?
Online Ruler Plus never prompts for or accesses your webcam, microphone, GPS location, contacts, or clipboard, and does not collect or pass personally identifiable information (PII) in page URLs, query parameters, or advertising requests. If you voluntarily write to support@onlinerulerplus.com to submit a display density profile or report an issue, your email address and message are used solely to respond to your inquiry and maintain documentation accuracy.
04 · Google AdSense & Third-Party Cookies
How are third-party advertising cookies and partners used?
To keep Online Ruler Plus free to use, third-party vendors, including Google, may display advertisements on eligible content areas and use cookies, web beacons, IP-derived location signals, or device identifiers to serve ads based on a user’s prior visits to OnlineRulerPlus.com or other websites. Specifically, Google’s use of advertising cookies enables Google and its certified partners to serve personalized ads based on your visits to this site and other sites across the Internet, or non-personalized contextual ads depending on your consent choice and region.
05 · Advertising Opt-Out & Google Policy
How can you opt out of personalized advertising?
Users may opt out of personalized advertising at any time by visiting Google My Ad Center (Google Ads Settings) or by visiting www.aboutads.info/choices to opt out of third-party vendor personalized advertising cookies. To understand how Google processes partner site data, please read Google’s official disclosure: How Google uses information from sites or apps that use our services.
06 · Consent, Children’s Privacy & Regional Rights
What regional privacy and consent standards apply?
Where personalized advertising is enabled for visitors in the European Economic Area (EEA), the United Kingdom, or Switzerland, consent is collected via a Google-certified Consent Management Platform (CMP) supporting IAB TCF v2.2 before non-essential advertising cookies are set. California and eligible U.S. residents retain the right under CCPA/CPRA to opt out of ad-tech data sharing or targeted advertising via our consent link and browser signals. Online Ruler Plus is a general-audience measurement utility not directed to children under 13 under COPPA. Contact support@onlinerulerplus.com with any privacy request.