A: No. Northwoods does not offer a free student edition. Students must either purchase a license or use open-source alternatives for non-commercial learning.
You must purchase a license from Northwoods Software. Licenses are typically tied to a specific domain or set of domains. Once purchased, you will receive a unique license key string. 2. Implement the Key in Your Code
When building a desktop application using Electron, your HTML page is not served from a web server at a domain. In this scenario, you will need to activate using the name you have specified in your project's package.json file.
// Must execute after loading the library and before you create your first Diagram go.Diagram.licenseKey = "YourGeneratedKeyHere"; gojs remove watermark
// For modern versions (1.7+) go.licenseKey = "Your-License-Key-Here"; Use code with caution. Copied to clipboard
The license key must be set the diagram object is instantiated. If your diagram setup code runs before the line assigning go.Diagram.licenseKey , the evaluation watermark will trigger and stay on the canvas. Cached Assets
: Before initializing any go.Diagram , set the go.licenseKey property with your generated string: javascript You must purchase a license from Northwoods Software
: The watermark may appear if you access your site via an IP address (e.g., 192.168.1.5 ) instead of localhost , unless that IP is licensed.
import * as go from 'gojs'; // Replace the string below with your actual license key string go.Diagram.licenseKey = "YOUR_COMMERCIAL_LICENSE_KEY_HERE"; // Now you can safely initialize your diagram without a watermark const myDiagram = new go.Diagram("myDiagramDiv", // diagram configuration options ); Use code with caution. 2. Angular, React, or Vue Applications
Starting with version 1.7, Northwoods Software introduced a streamlined license key system. After purchasing a license, you need to request a license key through their activation portal at: and they lack modern features (e.g.
GoJS is a powerful TypeScript and JavaScript library used for building interactive diagrams, charts, and graphs. When using the free evaluation version of GoJS, a small watermark text reading "GoJS evaluation" or "GoJS Canvas" automatically appears in the background of your diagram component.
If you are currently evaluating GoJS for a project and the watermark is affecting your user testing or client presentations, contact Northwoods Software directly through their website at to discuss your specific needs. They can provide guidance on the appropriate license type for your use case and ensure that your implementation is fully compliant with their terms of use.
Old versions also have watermarks, and they lack modern features (e.g., pen support, rich text editing). More importantly, using an outdated version exposes you to security vulnerabilities (though rare for canvas libraries).