Browser-based 3D hexagonal tile editor built with Three.js
You can try it out at http://benjvogt.com/hex
Move: W, A, S, D to move camera. R, F to move raise and lower.
Rotate: Use the up, down, left, right arrows to rotate camera.
Zoom: Scroll to zoom in and out.
Add Hexagon: Click on the scene to add a hexagon in that location.
Remove Hexagon: Click the negative hexagon button, and click on a hexagon to remove that hexagon from the scene.
Color: Select the color for new hexagons.
Save, Load, New: Save, load, or create a new scene.