~ FREE BUILDING TOOL ~
Convert an image into buildable Minecraft mapart — with the staircase shading that triples the palette, not just the 61 flat colours. You get the height of every block, a materials list that counts the terrain underneath instead of only the surface, and a map_N.dat file you can drop into a world to see the finished art before placing a single block. Free, runs entirely in your browser.
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JPEG, PNG, or WebP
Converted in your browser — your image is never uploaded
Minecraft map art is a picture built out of blocks on the ground and viewed through a map item, not with your own eyes. A map at scale 0 records one colour per block over a 128×128 area, so a build that size fills exactly one map — and a wall of item frames holding several maps becomes a much larger picture.
The part that surprises people is where the shading comes from. Each of the game's base map colours renders in one of three brightnesses, and the game picks which one by comparing a block's height to the block directly north of it: lower is dark, level is normal, higher is light. That is why serious map art is built as a staircase rather than a flat floor — stepping the terrain unlocks all three shades and takes the usable palette from 61 colours to about 180.
It also means the shading is not something you choose per block. It falls out of the terrain, so a tool has to prove the heights it hands you actually produce the colours it promised. This generator solves the heights column by column and then re-reads the shading back off the finished terrain to check it matches, because the alternative failure is silent: you build for a week and the map shows a different picture.
A flat build is one level layer, so every block renders its normal shade and you get 61 colours. A staircase steps the terrain north-to-south, which unlocks the dark and light shade of every colour and takes you to about 180. Staircase is what almost all published map art uses; flat is mainly for simple logos and text where banding does not matter.
The game decides a pixel's brightness by comparing that block's height to the block directly north of it — lower renders dark, level renders normal, higher renders light. Nothing else affects it, which is why map art is solved one north-south column at a time and why the row north of your artwork matters even though it is not part of the picture.
One extra row of blocks immediately north of the artwork. The top row of your picture is compared against it, so if it is missing, that entire row can only ever render its normal shade. Every build file this tool exports includes it, and it is listed separately in the materials so the count is honest.
Put it in your world's data folder — for example saves/MyWorld/data/map_7.dat — then load the world and hold a map item with that number, or run /give @s minecraft:filled_map[map=7]. The art appears with nothing built. It is the fastest way to check a design before you spend days gathering concrete.
Far more than the surface. A 128×128 map is 16,384 surface blocks, but a staircase needs every block underneath each surface block too, so a typical single map runs well past 30,000 once the terrain is counted. This tool quotes the full number, including the support row, rather than the surface count that makes builds look cheap.
Water is the one map colour whose shade comes from depth rather than from the height of the block north of it. No staircase can place it, so including it would let the converter pick a colour you then cannot build. It is left out of the palette entirely.
It caps how tall any single north-south staircase may climb. When a column would exceed it, the tool flattens that whole column and tells you which ones — and it rewrites those pixels to their level shade so the preview and the map file show what you will really get. It never silently truncates the terrain, because that would render colours nobody chose.
Yes, and the materials list is built for exactly that — every block is quoted in full stacks plus a remainder, and blocks with a catch (wool burns, sand falls, leaves decay) carry a warning. Restricting the palette to blocks you can mass-produce, like concrete and terracotta, makes a survival build far more realistic.
Completely free, no sign-up, and the conversion runs in your browser — your image is never uploaded anywhere.
MakeBead is not affiliated with, endorsed by, or associated with Mojang Studios or Microsoft. Minecraft is a trademark of Mojang Studios.