Show HN: Wikigraph – an interactive visualization of all of English Wikipedia
tobypenner.comHi! This is a visualization I've always wanted but never quite found. It's a navigable map of the Wikipedia link graph structure, with search and shortest-path finding.
Offline, I parsed the May 2026 English Wikipedia full-text dump into a directed graph, used cuGraph on a GPU to run PageRank, Leiden clustering, and ForceAtlas2 for the layout. I did some post processing to get rid of lingering overlapping nodes and rendered a tiled map of raster base images (using Skia) and JSON metadata. Tiles are bundled into PMTiles. The frontend is Deck.gl.
Everything is hosted on Cloudflare. Search and shortest-path are served by a Rust backend in CF Containers which uses Tantivy and bidirectional BFS.
Happy to answer any questions!
I was dragging to rotate it before I realized that it was 2D...
Are there really two principal components or is that primarily your choice of visualization?
It's a choice. The layout isn't PCA, it's a force-directed embedding (ForceAtlas2). This acts directly on the directed graph of pages and their links, I think you would need some other representation to do PCA.
You could likely run ForceAtlas2 in 3D or higher and get better clustering fidelity, but that obviously makes visualization harder.