Sunrize — A Multi-Platform X3D Editor
Sunrize is based on X_ITE and is a basic editor for X3D files. The scene can be edited in an Outline Editor and there is a Script Editor where Script nodes and ComposedShader nodes can be edited.
First you need to install both Node.js and npm on your system. To accomplish this, you can use a Node installer (Windows), or use Homebrew to install node (macos), or use your Linux package manager.
Then you can run Sunrize without installing it using npm's npx command:
$ npx sunrize@latest [files]
Note: The first time, it may take a while for Sunrize to start.
Sunrize is free software and licensed under the MIT License.