A Minecraft horse and donkey calculator. Enter a horse's speed, jump and health to get a perfection score, keep a stable of your best horses, and see which two to breed next.
▶ Open the live app · works on phone and laptop
- Perfection score: speed, jump and health each scaled against Minecraft's real minimum and maximum, averaged into one 0 to 100 score.
- Enter stats the way you measure them: speed from an items-per-trip count (760 ÷ items), jump in blocks plus snow layers, health in hearts.
- Your stable: save horses, load them back into the calculator, and delete the ones you release.
- Breeding advice: simulates 800 foals per pair and ranks every pair by expected foal, best result, and chance to beat both parents.
- Stat leaders and culling: shows who leads in each stat and which horses are beaten in every stat by another, so they're safe to let go.
- Horse or donkey, perfect or trash: four separate stables, including a "trash" mode that hunts for the worst possible horse.
- Backup: export all stables to a
stable.jsonfile and import it on another browser.
One HTML page: React 18 and Babel from a CDN, pixel fonts from Google Fonts, and localStorage for saving.