JG BlueLight Guard

Block blue light, keep your screen sharp and clear. Reduce eye strain with precise color filtering — no blurring, no yellow tint.

JG BlueLight Guard blocks blue light using SVG color-matrix mathematics — no yellowing, no blur, no sacrifice in sharpness. 🔵 HOW IT WORKS Unlike OS Night Mode that overlays warm/yellow tint, this extension reduces only the Blue (B) color channel mathematically. Red and green values stay untouched — whites stay white, colors stay accurate. ✨ FEATURES • 3 presets: Gentle / Standard / Strong • Adjustable intensity 0–100% • Per-site whitelist (exclude specific domains) • Smart schedule: auto-adjusts intensity by time of day • SVG + CSS dual rendering method • Works on all Chromium browsers 🎁 FREE TRIAL 7-day full trial — no credit card required. After trial, Standard mode remains free forever. 🔒 PRIVACY No personal data collected. No analytics. No tracking. Settings stored locally on your device only.