Every codebase has a shape. Most of it stays undrawnNeedyNodes is a free, browser-based tool that turns a codebase into an interactive dependency map: files become nodes, imports become edges, and circular dependencies or dead exports are flagged automatically. It parses JavaScript, TypeScript, Python, Go, Rust, Vue and Svelte. Nothing is uploaded: parsing runs entirely in the browser.Three ways to add code

Paste the URL of a public GitHub repository.

Drop files, or drag a whole folder onto the canvas.

Paste a snippet straight from the clipboard.

What it findsOnce the map is drawn it reports the file the rest of the project leans on, imports that run in circles, exports nothing uses, files that have outgrown themselves, and import chains that run too deep.Real projects, already mapped

Zustand: state management: The whole library in sixteen files. vanilla.ts sits at the centre and every middleware builds on it. (16 files; TypeScript)

Vue: reactivity core: The thirteen files behind ref(), reactive() and computed(). The circles between them are real: that is how reactivity works. (13 files; TypeScript)

Svelte: compiler pipeline: Parse, analyze, transform. The three phases every .svelte file passes through, in 33 files of compiler. (33 files; JavaScript)

Flask: the whole framework: A whole web framework in 24 files. The app object, request context, routing and templating, small enough to take in at once. (24 files; Python)

Task Tracker (multi-language demo): Eleven files across TypeScript, Python, Go, JSON and CSS, built to show what a mixed-language project looks like on the canvas. (11 files; TypeScript, Python, Go, JSON, CSS)

Supported languagesJavaScript, TypeScript, JSX, TSX, Python, Go, Rust, Vue and Svelte are parsed for functions, classes, imports and exports. HTML, CSS, SCSS, JSON, YAML and TOML are summarized as compact cards, 19 file extensions in total.Where your code goesNowhere. There is no backend and no account. Parsing happens in the browser tab you have open, and closing it discards the project unless you saved it yourself.See open-source codebases already visualized · About NeedyNodes