YouTube videos pile up in watch history, each containing insights that vanish the moment the browser tab closes. InfoCaptor AI transforms this ephemeral content into a permanent, searchable knowledge base by converting videos into visual knowledge graphs, summaries, and organized dashboards that live inside your Chrome browser.
This system works through a Chrome extension that transcribes videos with a single click. Each transcript comes with timestamps, making it possible to jump to specific moments without scrubbing through the entire video. The extension then auto-generates summaries and TL;DR versions, breaking down content section by section so you can scan the key points before committing to the full transcript. It extracts key entities from the video content, automatically tags and categorizes everything, then builds visual knowledge graphs that show how topics connect across different videos you've watched.
These knowledge graphs get displayed alongside word clouds and entity maps, creating a visual representation of your accumulated knowledge. The dashboard organizes everything by channels, tags, or entities, making it filterable and searchable. Each video gets its own detailed page with the embedded video, transcript, summary, and extracted entities all in one view. The entire system can run locally in your browser without requiring any login or account creation, storing transcripts and summaries directly on your device.
The free plan provides unlimited transcripts and unlimited local storage, but caps advanced summaries at three per month. Cloud storage comes with this tier too, though retention only lasts 30 days. The SOLO plan costs $9 monthly or $5.99 monthly when billed annually, bumping advanced summaries to 1000 per month and extending cloud retention to 12 months. The Pro plan runs $29 monthly or $17.99 monthly on annual billing, delivering 3000 advanced summaries per month with unlimited cloud retention. Annual billing saves 40% across both paid tiers.
The limitation structure reveals itself through these monthly summary caps. Free users hit a wall after three advanced summaries each month. SOLO subscribers can process up to 1000 videos monthly before running out. Pro users get 3000 summaries monthly. Cloud retention also constrains free users to 30 days and SOLO users to 12 months, meaning older content disappears unless you upgrade or keep everything stored locally.
InfoCaptor AI targets anyone building a personal knowledge base from YouTube content. Students and researchers use it to catalog educational videos. PhD researchers organize hours of lecture content. Busy executives extract insights from conference talks and industry videos. Medical students break down complex procedure demonstrations. Journalists track sources and interview content. Educators curate teaching materials. Startup founders collect business advice from multiple channels. Neurodivergent learners who process information better visually benefit from the knowledge graphs and entity maps. Content creators research their niche. Nonprofit researchers track relevant advocacy content. BookTubers organize reviews and discussions.
The extension only works with YouTube and only runs in Chrome, limiting platform flexibility. You cannot pull in content from other video platforms or use it in Firefox or Safari. The local-first approach means your knowledge base lives in your browser unless you opt for cloud storage, which itself comes with retention limits on lower tiers. The visual knowledge graphs and entity connections represent its distinguishing feature, positioning it as the only AI summarizer that creates this type of connected visual knowledge base from YouTube videos rather than just spitting out text summaries.
