Minecraft Game Out of Memory Error: How to Fix It

Q: How much RAM should I allocate to Minecraft?

For vanilla Minecraft, 2-4GB is usually sufficient. For modded Minecraft, allocate 4-8GB depending on the number of mods. Never exceed 50-60% of your total system RAM.

Q: Why does Minecraft keep running out of memory even after increasing RAM?

This can happen due to memory leaks from mods, too many resource packs, or extremely large world files. Try reducing render distance, removing unnecessary mods, or using optimization mods like OptiFine.

Q: Can I fix this error on Minecraft Bedrock Edition?

Minecraft Bedrock Edition manages memory automatically and doesn't allow manual allocation. If you're getting memory errors on Bedrock, try closing other apps, restarting your device, or reducing graphics settings.

Q: What if I don't have enough RAM on my computer?

If your computer has less than 8GB of total RAM, consider upgrading your physical RAM or reducing Minecraft's graphics settings, render distance, and removing resource packs or mods.

Abstract

The Minecraft Out of Memory error (java.lang.OutOfMemoryError) occurs when the game runs out of allocated RAM and crashes. This happens because Minecraft uses Java, which has a default memory limit that's often too small for modern gameplay with mods, large worlds, or high render distances.