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Build a Second Brain That Never Forgets

Mindweave is the second brain app that captures everything you learn, automatically connects related ideas, and lets you query your knowledge in plain English — like having a research assistant who has read all your notes.

You're Learning Constantly — But Most of It Disappears

Every week you read articles, watch talks, attend meetings, and have ideas. You save them somewhere — a folder, a notes app, bookmarks — with good intentions. But the information siloes up and the connections between ideas never form.

Building a second brain is supposed to solve this. But most tools make you do all the work: manually linking notes, curating tags, writing summaries. It becomes a second job instead of a second brain.

A real second brain should offload cognitive work, not add more.

AI That Forms the Connections You Would Miss

Mindweave builds your second brain automatically. Drop in notes, links, and files — the AI tags them, creates vector embeddings that understand meaning, and surfaces related items when you view any capture. Over time, Mindweave becomes a living map of everything you know, queryable in plain English.

Automatic Knowledge Graph

Mindweave uses vector embeddings to map semantic relationships between all your captures — surfacing connections you would never find manually.

Query Your Own Mind

Ask anything. Mindweave searches across your entire knowledge base semantically and answers with citations from your own notes.

AI-Powered Tagging

Every capture is categorized automatically. Your second brain stays organized without you lifting a finger.

Capture Anything

Notes, URLs, files — Mindweave ingests all formats and makes them searchable and queryable the moment they arrive.

4 GitHub stars|2,675+ tests passing|Open source & free

Start organizing your knowledge today

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Build Your Second Brain