worldgenerator.js

Updated on February 6, 2022. Major changes include: higher proportion of landmass to ocean; more realistic river flow with meandering; and performance improvement.

Generates random maps with realistic topography.

This program does not run on Internet Explorer. Please use Chrome or other browsers (that are compatible with Javascript’s generator function).

• Click [new map] to generate a random heightmap.
• If you like the map, click [start water] to simulate water flow. As this can take more time as the map gets larger, try first with size 256.
• To change how the map looks, select options and click [redraw].
• To change the map size, select [size] and click [map with seed] (water flow has to be calculated again).
• You can save the map image by right-clicking on it. If you publish something based on the image, please refer to this page.

size: 256 512 1024 2048
show elevation show elevation in detail show elevation in detail 2 show landmass hide landmass with shades no shades
show ocean depth show ocean depth in detail show ocean hide ocean hide rivers show major rivers show all rivers hide lakes show lakes


welcome to worldgenerator.js.