Network Graph Builder

A free, offline, multi-language app for creating beautiful network diagrams, force graphs and node maps.

Network Graph Builder is a powerful, beautiful tool for creating network diagrams, force-directed graphs, and node-link visualizations directly on your Android device. Whether you're sketching an org chart, mapping a social network, designing a system architecture, or visualizing data relationships — it's all just a few taps away.

FEATURES:

- Tap-to-add nodes and edges with a custom physics engine

- 5 layout algorithms: Force-directed, Circular, Grid, Hierarchical, Radial

- 14 ready-made presets — Triangle, Star, Tree, Org Chart, Galaxy and more

- 6 stunning color palettes & 6 canvas backgrounds node shapes (Circle, Square, Diamond, Hexagon) + 3 edge styles

- Directed graphs with arrows

- Pinch to zoom, drag to pan, drag nodes to reposition

- Save unlimited graphs locally

- Export as PNG, JSON, SVG or CSV

- Import JSON to continue editing

- Light & dark themes

No accounts. Offline. Your graphs stay on your device.