Ed is a cross-platform prototyping tool and level editor for tile-based games. The tablet version of the app comes with the full feature set including:

- Import your sprite sheets and automatically slice them into sprites,
- Set terrain bit mask rules for different sprites and export them to brushes that automatically detect and draw terrain corners appropriately,
- Create Tile Definitions (TileDefs) that have custom tile sizes, animations, background colors and more,
- Rule Brushes: Define rules with which the editor automatically picks and chooses tiles based on criteria you set,
- Auto Brushes: Whitebox your levels and define auto brush regions to automatically transform whiteboxed tiles into polished areas,
- Pick tiles randomly based on assigned probability weights,
- Manage multiple levels per project (world),
- Draw on multiple boards on each level,
- Set parallax parameters per board,
- Draw colliders using a brush and craft secret areas,
- Export to an intuitive and easy to parse text format, as integer, hex, or char grid,
- The file format is ZIP containing images and pure JSON, ready to be imported into your code,
- Go back and forth between the desktop and tablet versions and create your game on the go or at your desk!
- Built-in support to export to Unity
- Create Enums, Classes and other data structures. Built-in support for MonoBehaviours.

The iPhone version of the app allows you to open your projects and edit levels in a more compact user interface, optimized for the smaller device form factor. While the environment is compatible with the full version, the iPhone app has a more limited feature set.