Linko - Let Ideas Grow

For those who read and think deeply, Linko helps you build a knowledge system that's truly yours—not just a collection of notes, but a growing web of understanding.

Build a knowledge tree that organizes itself.

Linko helps you turn what you read and think into a growing knowledge system — so your ideas don’t get lost in scattered notes.

Perfect for: learners, readers, students, researchers, and creators

Capture your thinking • Jot ideas, questions, and reflections on mobile or web • Save books, articles, videos, and podcasts alongside your own thoughts

Auto-organize (no folders) • AI tags your notes so related ideas naturally group together • Focus on thinking, not filing

Discover connections automatically • Related notes resurface when you need them • Connect insights across time and sources

Review and learn faster • Knowledge tree visualization shows what you’ve learned — and what’s missing • AI summaries and Q&A based on your saved content

Available on mobile + web (with browser extension).

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Private by default • Encrypted private notes for your sensitive thoughts • Your data stays under your control

Flexible writing • Markdown support for structured notes • Custom tags for personalized organization

AI-powered learning • Smart Q&A grounded in your own knowledge base • Intelligent summaries across notes and resources

Cross-platform • iOS app, web app, and browser extension • Seamless sync across all your devices