Briefy

Briefy is a web and browser-based AI knowledge assistant for students, researchers, and professionals who need to turn long-form content into structured notes they can revisit.

Key capabilities include:

• One-click summarization for webpages, YouTube videos, PDFs, and audio/media, with output in overview text, tables, mind maps, and timelines.
• A personal knowledge base to save, tag, review, and search summaries (“Briefs”) for ongoing research and study.
• Ask (chat with content), which answers natural-language questions grounded in the saved source material.
• Browser and device access, including Chrome extension, Safari extension (iOS/iPadOS/macOS), and iOS support.

Pricing: Freemium, including a free plan with limited credits; Pro at $13.99/month (unlimited AI summaries and knowledge base access); Team plan with business features such as user management.

What makes it notable is its focus on structured summary views (especially mind maps and tables) paired with a searchable, tagged knowledge base, so users can both digest information quickly and build a private library they can query later.