Stable signalUnknownMedium-risk permissions
CogniShield icon

CogniShield

Protect your eyes and brain while watching videos — blue light filter, flash guard, and volume limiter for YouTube.

Users0Current public install base
Rating--Store average score
Reviews0Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate--Relative weekly velocity
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Technical snapshot

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Version1.0.0
ManifestV3
Size64.85KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

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CogniShield is a lightweight Chrome extension that silently protects you and your family while watching YouTube videos. It applies three real-time protections directly to the video — no content blocking, no data collection, and no interruptions.

BLUE LIGHT FILTER

Shifts the video color temperature toward warmer tones to reduce blue light exposure. Blue light (400-490 nm) is known to suppress melatonin and contribute to eye strain, especially in children whose eyes transmit more short-wavelength light. Adjust the intensity from subtle warmth to a deep amber tone.

FLASH & FLICKER GUARD

Continuously analyzes video frames for rapid brightness changes that could be harmful to photosensitive viewers. When flashing content is detected, CogniShield automatically dims the video to a safe level. The detection algorithm follows WCAG 2.3.1 guidelines and triggers conservatively — well below the threshold known to cause photosensitive reactions.

VOLUME LIMITER

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Total reviews0Chrome Web Store public rating/review count
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