Read code. Annotate it. That's it. A free, open-source tool for understanding codebases.
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Updated
Sep 28, 2026 - TypeScript
Read code. Annotate it. That's it. A free, open-source tool for understanding codebases.
A Code extension for secondaries
Records what you understood while reading open-source code — quick notes and deep notes grouped into one card per repo/file/symbol, stored as Markdown you can open in Obsidian.
Visualize public GitHub repos as dependency maps and reading guides — where to start, what each file does. The map is built mechanically, no API key needed.
Shared highlights and comments for VS Code, kept beside your code instead of inside it
Debug-driven AI code-reading tutor for Python, TypeScript and JavaScript — a VS Code extension plus an experimental JetBrains preview.
O telefone sem fio do código: jogo multiplayer no navegador para escrever, explicar e reescrever código com amigos. Duelo para 2 ou Telefone sem fio para até 8, via WebRTC e sem servidor.
To associate your repository with the code-reading topic, visit your repo's landing page and select "manage topics."