Colorblindify Colorblindn

ColorBlindify is a modern visual accessibility extension designed to help users with color vision deficiency.
It combines a data-backed digital test suite with intelligent, adaptive color correction to deliver a fast, usable experience directly in Chrome.

ONCE DOWNLOADED: Click the extension icon, pin it and click on it → take the color vision test (2-3 minutes) or go straight with the filters.

🔍 What it does
38 standardized pseudo-Ishihara plates for quick screening.
Real-time answer tracking and response analysis in the browser.
Instant personalized recommendation based on performance.
Adaptive filter mode selection (simulate/correct) and severity setting.
🧠 Algorithm and accuracy story
Uses a trained scoring engine that maps response patterns to a color vision severity index.
Computes a normalized intensity score (0.0–1.0) that translates to:
0 = normal (no filter)
0.3 = mild
0.6 = moderate
1.0 = strong
The algorithm integrates both exact and near-miss responses to reduce false positives and create a resilient defect-score estimate.
Results are shown in a clear “severity + recommendation” format, helping users choose practical filter strength quickly.
🆘 Accessibility-first design
Clear UI with large controls and high contrast.
Keyboard-friendly quiz interactions.
Built-in reset & adaptive intensity feedback so people with different vision profiles can tune differently.
🛡️ Privacy + policy-safe
No personal identity collection.
Only local Chrome sync storage for user filter preferences.
No server-side data unless user opts for submission in future versions.