forcefield

v0.1.0

A dependency-free force-directed graph engine: Barnes-Hut many-body simulation, velocity-Verlet integration, drag / pin / filter / zoom, behind a swappable Canvas 2D renderer. TypeScript in, ESM out, nothing in node_modules.

An Obsidian graph view next to the same hierarchy rendered by forcefield — Same hierarchy, two renderers. Live in the tree demo: **2,864 nodes at 60fps**, 59.2 1%-low, measured in-browser — not a screenshot claim.

Try it — one click, drag anything

basic Synthetic graph from a seed. Anyone can reproduce it — no data required. tree 2,864 nodes, laid out from nothing by the simulation. Synthetic, built from a seed — point it at your own export with ?data=. live Nodes inserted one at a time into a running simulation. No pre-computed layout. bench Fixed-protocol in-browser frame benchmark. No eyeballing.

Measured, not claimed

1,651 nodes — sim 2.662ms / frame 3.025ms per tick.
2,864 nodes — 60fps sustained, 59.2 1%-low, in-browser.
99 tests, node:test, zero dependencies.

Built for single-digit-thousands of nodes in a browser tab, not hundreds of thousands on a GPU — past roughly 100k nodes a GPU-backed engine wins on brute force alone, and this repo says so rather than pretending otherwise.