About Drill

Learning shouldn't require 20 open tabs. Drill turns "I don't understand this" into a one-click deep dive — right where you're reading. We believe the best way to learn is to follow your curiosity in context, not to break your flow searching elsewhere.

Drill is not a chatbot. It's a reading-first learning tool built for depth:

• In-context learning: Explanations appear right where you highlighted, not in a separate window
• Recursive depth: Every explanation can be drilled further, forming infinite knowledge trees
• Visual navigation: Three-layer viewport with zoom animations keeps you oriented at any depth
• Reading-first: You read, you highlight, you drill — no prompt engineering needed
• Code-friendly: Full syntax highlighting for programmers reading technical documentation
• Persistent trees: Every learning session is saved so you can revisit and continue exploring

Programmers learning new frameworks or languages. Students studying complex subjects. Anyone who reads to learn and wants deeper understanding without losing their place. If you've ever wished you could click on a confusing paragraph and have it explained, Drill is for you.

The core learning loop in three steps:

• Paste any text or let AI generate a starter article on your topic
• Read and highlight anything you don't understand
• AI creates an inline explanation — drill into it for even more depth
• Zoom in to focus on a sub-topic, zoom out to return to the big picture
• Your entire knowledge tree is saved automatically
• Continue any session later to keep exploring
• Code blocks render with full syntax highlighting
• Works with technical docs, academic papers, blog posts, and more
• Streaming AI output — start reading while it generates
• Dark and light mode for comfortable reading