A lightweight canvas editor for system architecture. Drag nodes, draw connections, export anywhere. No sign-up. No bloat. Just diagrams.
Built for engineers who think in systems. No learning curve, no enterprise pricing, no 200MB Electron app.
14 component types — Client, Server, DB, API, Auth, Queue, Cache, Cloud, Function, and more. Drag to place, double-click to rename.
Labeled, colored, directional or bidirectional. Animated flow visualization with adjustable speed. 7 color options.
PNG at 2x resolution, JPG, animated GIF, and WebM video. Share diagrams anywhere — docs, slides, or Slack.
40-state history with Ctrl+Z / Ctrl+Shift+Z. Move fast, break things, then undo them. Every action is reversible.
React + Vite + two focused libraries. No state management bloat, no CSS frameworks, no vendor lock-in. *Almost zero.
Persist to localStorage, export/import as JSON. Your diagrams live in your browser — no account required, ever.
Every building block for modern system architecture. Group them, connect them, export them.
Six battle-tested architecture patterns. Load, customize, ship.
Client → API → Database
Gateway + Services + Queue
Producers → Queue → Consumers
Login → Auth → Cache → DB
Web App + Auth0 + API
Code → Build → Deploy → Monitor
No Electron. No heavy frameworks. Just the essentials, optimized for speed.
Free. Open source. Runs in your browser. Forever.