Playground

Modes are exclusive — only one is on at a time. ✎ Edit text: tap a node to set its header + content, or tap an edge to label it. 🔗 Connect: tap the source node (turns orange), then the target. With no mode on, tap a node or edge to select it, then Delete; drag a node to move it. 📐 Arrange auto-lays out the graph left-to-right.