Lightweight pure-SVG flowchart editor: add nodes from the palette, drag to link, double-click to rename, with undo and JSON or PNG export
FAQ
Can I save a flowchart and edit it later?
Yes. Export the graph as JSON to save it, then import that JSON to restore the canvas and keep editing. You can also export a PNG to drop into documents or chats.
How do I connect two nodes with an edge?
Press the round port handle on a node edge, drag onto another node and release to create an arrowed polyline. Duplicate edges between the same pair of nodes are not allowed.
All data is processed locally in your browser. Nothing is uploaded.