Heptabase

Heptabase is a visual note-taking tool that helps you learn complex topics. You can put your rich-text notes on whiteboards to record your thinking process. When you search for a note in the future, you can find the whiteboards it appears on to remember how you think with perfect visual memory. Heptabase is backed by Y Combinator, HOF Capital, Kleiner Perkins, Moving Capital, Tonic Fund, and other investors, including the founders of Socialcam, Triplebyte, Codementor, and more.