GridArchitect — D&D Terrain Tile Planner
Free web tool for Dungeons & Dragons Dungeon
Masters to plan physical 3D terrain builds.
Upload your battle map, overlay tiles from any system —
Warlock Tiles, Dwarven Forge, Dungeon & Lasers, or
your own custom sets — and calculate exactly which and
how many tiles you need to recreate the map in 3D.
Features
-
Upload and visualize high-resolution battle maps
or create blank canvases
-
Calibrate grid size and offset to perfectly
match your map's native grid
-
Place tiles from any terrain system: floors,
outer walls, inner walls, corners, doors,
windows, diagonal pieces, and custom shapes
-
Supports Warlock Tiles (WizKids), Dwarven Forge,
Dungeon & Lasers, and fully custom tile sets
-
Configurable tile sizes, colors, border styles,
opacity, and shapes
-
Rotate tiles in 90° increments with the R
key
-
Zoom (scroll wheel), pan (click-drag), and
smooth canvas navigation
-
Real-time tile inventory tracking with optional
quantity limits per tile type
-
Import and export tile configurations as JSON
for backup and sharing
-
Print-friendly cheat sheet of all placed tiles
-
Fully client-side — all data stays in your
browser, no accounts required
How It Works
-
Upload a map: Load any battle
map image (JPEG, PNG) or create a blank canvas.
-
Calibrate the grid: Adjust grid
size and offset so the overlay aligns perfectly
with your map.
-
Select tiles: Choose from
floors, walls, corners, doors, windows, and more
in the sidebar toolbar.
-
Place tiles: Click on the map
to snap tiles to the grid. Rotate with R, remove
with Shift+Click.
-
Review inventory: The sidebar
shows a running count of every tile type
you've placed.
-
Export & print: Save your
build as JSON or print a cheat sheet to bring to
the table.
Supported Terrain Systems
-
WizKids Warlock Tiles —
Clip-together dungeon terrain
-
Dwarven Forge — Premium
hand-painted resin terrain
-
Dungeon & Lasers —
Snap-together plastic terrain
-
Custom tile sets — Define your
own tile dimensions, names, colors, and shapes
Controls
|
Action
|
Control
|
| Place tile |
Left-click on canvas
|
|
Select tile type
|
Left-click in sidebar toolbar
|
|
Pan the map
|
Click and drag
|
|
Zoom in/out
|
Mouse scroll wheel
|
|
Rotate tile
|
R key |
|
Remove tile
|
Shift + Left-click
|
Frequently Asked Questions
- What is GridArchitect?
-
GridArchitect is a free web tool that helps
D&D Dungeon Masters plan physical 3D terrain
builds by overlaying virtual tiles onto digital
battle maps.
- How much does it cost?
-
GridArchitect is completely free — no accounts,
subscriptions, or in-app purchases.
-
Do I need to install anything?
-
No. It runs entirely in your web browser at
gridarchitect.org.
-
Which tile systems are supported?
-
Warlock Tiles, Dwarven Forge, Dungeon &
Lasers, and any custom tile system with
configurable sizes and shapes.
-
Is my data stored on a server?
-
No. All data stays in your browser. Export to
JSON for backup or sharing.
-
Can I use my own battle maps?
-
Yes. Upload any JPEG or PNG image, or create a
blank canvas with a custom background color.
- How do I share my builds?
-
Export your tile placements as a JSON file and
share it. Others can import it into their own
GridArchitect session.