ModsJava
StackOptimizer
Reduces server lag by stacking dropped items and optimizing TNT explosions while keeping gameplay vanilla-like.
⬇ Download on ModrinthStackOptimizer is a lightweight performance plugin designed to reduce lag caused by item entities and TNT explosions — without changing the core Minecraft experience.
✨ Features
🧲 Smart Item Stacking
- Nearby dropped items automatically merge into full stacks
- Magnet effect pulls items together
- Significantly reduces entity count and lag
💥 Optimized TNT Explosions
- Explosions remain instant (no delay or weird behavior)
- Limits the number of processed blocks to prevent lag spikes
- Configurable system to control which blocks drop items
⚙️ Configurable
- Choose which blocks should NOT drop items (e.g. dirt, cobblestone)
- Control explosion size limit
- Easily tweak performance vs gameplay balance
🧠 Why use this?
Vanilla Minecraft struggles with:
- Large explosions (TNT spam)
- Massive item drops (mining, farms)
This plugin:
- Keeps explosions smooth and instant
- Reduces unnecessary item drops
- Improves server TPS without ruining gameplay
🛠️ Example config
no-drop-materials:
- DIRT
- COBBLESTONE
max-blocks: 150
🚀 Perfect for:
- Survival servers
- SMPs
- TNT-heavy gameplay
- Performance-focused setups
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.1, 1.21.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as StackOptimizer-1.0.0.jar — drop this file into the mods folder
- Download size: 6 KB
- Download link checked 23 Aug 2026 — working
These come from our own check of the pack file, not from the source page.