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Synapse is a real-time collaborative document editor that turns your notes into flashcards, quizzes, and a map of how your ideas connect.
A neural network is a function that learns from examples. It maps inputs to outputs by adjusting thousands of small weights, one gradient step at a time.
Backpropagation measures how much each weight contributed to the error, then nudges it in the right direction. Do this millions of times and patterns begin to emerge.
Concepts in this note: neural network, gradient descent, activation function, backpropagation. Would you like to turn this into flashcards?
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Why Synapse
A thinking tool, not just a text box
Real-time, lossless editing
Type beside teammates with live cursors and zero lost work, powered by an Operational Transformation engine we built from scratch.
AI that studies back
Turn any note into summaries, flashcards, and quizzes. The same text that teaches you also teaches itself.
A map of your thinking
Synapse surfaces the concepts hiding in your notes and draws the links between them as a living knowledge graph.
How it works
From blank page to connected knowledge in three steps
Create a document
Start a note in the editor, just like a blank page in a notebook. Write with markdown, headings, and rich text from the start.
Invite your team
Share a link. Teammates join the same document and edit alongside you, every cursor and keystroke kept in sync.
Watch the graph grow
As you write, Synapse extracts the concepts and quietly builds a graph of how your ideas connect.
Knowledge graph
Watch your notes become a network
Every note is a node. As you write, Synapse connects related concepts into a living map of what you're learning, then lets you explore the links between them.
Explore your graphYour best ideas deserve a synapse.
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