Voxel-label is a voxeljs module that implements LabelPlugin, a three.js plugin that adds labels to your game players (avatars). It can work in single-player mode as well as with voxel-client for labelling all avatars in a multiplayer game.
Run the start script:
This gets the server running on port 8080.
You may view a demo at http://127.0.0.1:8080.
var playerLabel = LabelMaker("JayJay", avatar, game, 1)
Make sure that your application populates a registration objects that has a username for the other players ("others"). voxel-app-server has an example of how to do this.
var playerLabel = LabelMaker(labelText, avatar, game, client.playerID, client.emitter, client.others)