FocusTube
“集中特化型YouTubeビューアー”
FocusTube transforms YouTube into a pure intentional learning tool. By removing distracting recommendation feeds, algorithmic infinite scroll, autoplay traps, and sidebar clutter, FocusTube helps knowledge workers, students, and engineers maintain deep focus.
開発の背景
Modern video platforms are engineered around addictive algorithmic loops and infinite feeds that trigger attention fatigue and unplanned time-wasting.
セキュリティとデータ方針
- 100% client-side execution with zero external servers.
- Zero telemetry, zero analytics tracking, zero data monetization.
- Requires minimal declarative permissions strictly scoped to video domains.
主要機能とアーキテクチャ
Algorithmic Feed Stripping
Hides home page recommendations, shorts carousels, and autoplay sidebars on demand.
Clean Search & Learn Mode
Retains full search functionality while preventing algorithmic distraction rabbit holes.
Instant Toggle Hotkey
Seamlessly switch between full focus and standard mode with a lightweight keyboard shortcut.
Ultra-Lightweight Footprint
Operates with zero background network requests and under 2MB RAM utilization.
仕組み
Install from Chrome Store
Add FocusTube to your browser in one click.
Open YouTube
Experience an immediately calm, clean, search-driven video environment.
Customize Visibility
Toggle comments, related videos, or thumbnails to match your exact focus preferences.
開発と検証の記録
課題
Engineers and students go to video platforms for 5 minutes of documentation or tutorials, but algorithmic recommendation hooks trap them for hours.
仮説とアイデア
Pennion designed a surgical, zero-latency DOM modifier that restores intentionality to video viewing without breaking search or subscriptions.
実装プロセス
Engineered a pure vanilla DOM mutation-observer based Manifest V3 extension requiring zero runtime dependencies.
Memory Footprint
Telemetry Collected
DOM Injection Latency