OpenSight — Color Vision Correction

Real-time color correction for color vision deficiency, personalized to your vision profile.

OpenSight applies real-time color correction across every webpage, personalized to your unique color vision profile. How it works: 1. Take the free color vision test at opensight-two.vercel.app 2. Copy your calibration code from the test results 3. Paste it into the extension — correction is applied instantly Or use Manual Setup if you already know your CVD type and severity. Features: • GPU-accelerated SVG color filter — zero performance impact • Correction persists across all websites and page refreshes • Adjustable correction strength slider • Per-site enable/disable toggle • Keyboard shortcut (Alt+Shift+O) to toggle on/off • Before/after preview page with Ishihara plates and color spectrum • Supports Protanomaly (red-weak), Deuteranomaly (green-weak), and Tritanomaly (blue-weak) • Available in English and 简体中文 Privacy: OpenSight does not collect any personal data. Your vision profile is stored locally in your browser. The only network request is a one-time anonymous calibration lookup when you sync your test results. No account required. No ads. Free. Learn more and take the test: opensight-two.vercel.app