Privacy Policy

Composition Grid: Rule of Thirds, Golden Ratio & More

Last updated: March 31, 2026

Overview

Composition Grid is a browser extension for Chrome, Microsoft Edge, and Firefox that overlays composition grids (Rule of Thirds, Golden Ratio, Fibonacci Spiral, Golden Triangle, Fifths, and Center Crosshair) on images and video across the web. We are committed to protecting your privacy.

Data Collection

We do not collect, store, or transmit any personal data.

This extension:

  • Stores your settings (grid types, colors, sizes, language, site filter lists) locally using the browser's storage.sync API
  • Reads the active tab's URL locally to show/hide the context menu based on your site filter settings
  • Runs entirely on your device
  • Does not collect browsing history
  • Does not collect personal information
  • Does not track user behavior
  • Does not send data to any external servers
  • Does not use cookies or analytics

Permissions

Permission Purpose
storage Save your grid settings and site filter lists locally
contextMenus Add a right-click menu option to toggle the grid on images
tabs Read the active tab's URL to hide the context menu on sites you have blocked or not allowed
<all_urls> (content script) Overlay grids on images across all websites

Third-Party Services

This extension does not use any third-party services, APIs, or analytics tools.

Changes to This Policy

If we update this privacy policy, the changes will be posted in this document with an updated date.

Contact

If you have any questions about this privacy policy, please contact: