Bring your own key and take control of your YouTube.
Upgrade YouTube with over 35+ tools: instant AI summaries, timestamp notes, custom themes, and AutoMix audio suite.
Seamless Knowledge Sync & Integrations
Real Extension Screenshots & Live Preview
Take a look at how YouBo transforms YouTube. Switch between actual extension screenshots and interactive features below.

Polish Themes & Ambient Glow
Customize YouTube's UI with custom visual themes, dark canvas, ambient glow, and player visualizers.
Bring your own key and take control
Supply OpenAI, Claude, or OpenRouter Keys
While Pro+ paid subscriptions are coming later, you can bring your own OpenAI, Anthropic (Claude), or OpenRouter API key to enjoy all Pro+ AI features completely free right now!
Over 35+ tools to make YouTube 10x better.
From custom polish themes and AutoMix audio leveling to instant AI summaries and timestamp notes — YouBo is the complete YouTube upgrade toolkit.
Polish Themes & Custom Player Aesthetics
Transform YouTube's interface with high-contrast dark themes, Ambilight bias lighting sampled directly from video colors, vinyl music visualizers, and cyberpunk aesthetic presets.
AI Summaries & Free BYO-Key
Generate 30s executive summaries, bullet points, and flashcards. Bring your own OpenAI or Claude key to unlock all Pro+ AI capabilities 100% free!
AutoMix Audio Studio
10-Band EQ, -14 LUFS loudness normalizer, No-Speech shield intro trimmers, and dual-layer rain & coffee shop soundscapes.
Timestamp Notes & Seek
Take Markdown notes linked to exact seconds. Click lines in interactive transcripts to seek playback instantly.
⌘K Omni-Search & SERP Clean
Search across all watched videos simultaneously. Filter out Shorts, hide watched videos, and clean up YouTube search SERPs.
Bring your own key and
take control of your YouTube.
Supply your own OpenAI, Claude, or OpenRouter API key in YouBo's settings to unlock full multi-model AI summaries, transcript search, and study capabilities on your own terms.
Chrome MV3 Manifest Compliant • Local Data Privacy
Frequently Asked Questions
Everything you need to know about YouBo, data privacy, and Chrome MV3 performance.