Linfo

Linfo.ai is a web-based AI summarizer for students and professionals who need to extract key insights from long-form content such as articles, reports, PDFs, and YouTube videos.

Key capabilities include:

• Instant summaries with structured takeaways that focus on key points for faster reading and review
• Click-to-source references that let users jump from a takeaway back to the exact place in the original content
• One-click mind maps that convert takeaways into a visual map, with download options (PNG/JPG)
• Customization controls for adjusting the content hierarchy and level of detail in bullet takeaways

Pricing: Freemium. A free plan includes an always-on browser extension and limited weekly quota; paid Pro pricing includes options such as $11.99/month (3-month plan) and $95.88/year.

What makes it notable is the combination of structured takeaways, source-linked navigation, and automatic mind map generation, which supports both quick skimming and deeper study without losing the original context.