Privacy Policy
Last updated: October 2026. Explicit zero-data collection guarantee.
1. Zero-Upload Architecture
ContrastKit operates completely in your web browser. All color parsing, hexadecimal and HSL conversions, relative luminance math, matrix computations, and export formatting execute inside your browser's local JavaScript runtime.
No color codes, design tokens, palette data, or code snippets are ever transmitted to any remote server or third party.
2. Local Storage
We use your browser's standard localStorage API solely to remember your preferred UI theme (Light or Dark Mode). This preference remains stored on your machine and is never synced or sent to any analytics service.
3. No Tracking, Analytics, or Advertising
ContrastKit does not use invasive surveillance trackers, behavioral profiling cookies, advertising pixels, or third-party fingerprinting scripts. The application is distributed on Cloudflare's privacy-focused global edge network.
4. Contact
If you have questions regarding this privacy policy or our client-side architecture, contact us at privacy@contrastkit.pages.dev.