: Before creating any diagrams, set the static go.Diagram.licenseKey property in your code. javascript
But there was a heresy in his code.
If your watermark is still visible after adding a key, check these common pitfalls: gojs remove watermark
| Library | Best For | Watermark? | License | | :--- | :--- | :--- | :--- | | | General diagrams, flowcharts | No | Apache 2.0 | | JointJS (Free) | Basic ERD, BPMN | No (Pro version adds plugins) | Mozilla Public License | | Rete.js | Node-based editors (visual programming) | No | MIT | | LogicFlow | Business process diagrams | No | Apache 2.0 | | React Flow | React-based node graphs | No | MIT | : Before creating any diagrams, set the static go