Slime Finder PE is a web app to visualize slime chunks in MCPE. Unlike the Java edition, the location of slime chunks does not depend on the world seed so the chunks slimes can naturally spawn in will be the same for every world. See Minecraft Wiki: Slime for details.

You can scroll the map with your mouse or fingers. You can also change the scale of the chunk map with mouse wheel or by pinching.

The app has only been tested on Firefox, Safari (Mac), and Safari (iOS) and can be buggy on other browsers. Fork it on GitHub if you can suggest any changes to the app. Patches are welcomed.

The Pocket Edition slime chunk algorithm was reverse engineered by @protolambda and @jocopa3 and can be found on GitHub.

ChunkFrom , to , (slime chunk)
  • Tweak: the chunk map now caches chunk data so it renders much faster at the expense of increased memory usage and code complexity.
  • Tweak: the scale of the map is now saved locally.
New feature: added a scale slider to support mice without wheels.
Optimization: the chunk map now renders a lot faster than before.
New feature: the app now supports touch devices to scroll and scale the map, suggested by several Redditters
Bugfix: the chunk map was not accurate due to a wrong calculation of coordinates, reported and tested by TheHuntedBear
Initial release
for this awesome game.
and @jocopa3
for reverse engineering the algorithm.
Hammer.js devs
for their library to support touch devices easily.
Bacon.js devs
for their library to do functional reactive programming in JavaScript.
TypeScript devs
for their decent language for web-app development.
This application has been developed on NetBSD, Firefox, and GNU Emacs. Hosted on GitHub.