ServerBooster_Logo Minecraft Version Platform Language License

The Ultimate Performance Optimization Plugin for Minecraft Servers

Remastered Edition for Modern Minecraft (1.17.x - 1.21.x)

Version 3.0.0 is the LAST completely FREE version.

ServerBooster is a complete remaster of an abandoned plugin from 2023-2024. When we launched our first version, it already included:

• Original features not present in the old version
• Support for newer Minecraft versions (1.20.x - 1.21.x)
• Complete rewrite in modern Kotlin with coroutines
• Better performance optimizations
• Active maintenance and bug fixes

I have maintained this project for FREE and Open Source for several months in good faith. However, to ensure the project's long-term sustainability and continued development, I've decided to introduce a PREMIUM model.

1. PREMIUM versions are released first on BuiltByBit
2. FREE versions are released on GitHub 1-2 weeks later
3. Both versions are identical - no features are locked behind a paywall

This is NOT about monetization - it's about SUPPORTING the project. If you want early access and want to help keep ServerBooster alive, consider purchasing the PREMIUM version. If you prefer to wait, the FREE version will always be available.

Get Premium

Features • Installation • Configuration • Commands • Performance Tips

ServerBooster is a comprehensive server optimization plugin designed to dramatically improve your Minecraft server's performance. This remastered edition has been completely rewritten in Kotlin with modern optimizations, coroutine-based processing, and full support for the latest Minecraft versions.

• Zero Dependencies - Just drop it in your plugins folder and go!
• Highly Configurable - Fine-tune every aspect of optimization
• Smart Optimization - Only optimizes what needs to be optimized
• RAM Efficient - Automatic chunk unloading keeps memory usage low
• Multi-Platform - Works on Spigot, Paper, and Folia

Entities are frozen using NMS (Native Minecraft Server) methods, ensuring minimal performance impact while maintaining vanilla behavior when players are nearby.

Reduce thousands of item entities into just a few, dramatically improving TPS on servers with mob farms or heavy item drops.

Paper 1.21+ handles chunk management very efficiently. ServerBooster complements this by managing chunks while players are online but have moved away from areas.

Perfect for servers with large trading halls - villagers that don't move for 60+ seconds have their AI disabled, saving massive CPU cycles while still allowing trading.

Prevents players from generating excessive chunks through rapid elytra travel.

Perfect for automatically clearing entities, notifying admins, or triggering emergency optimizations.

• Minecraft Server: Spigot, Paper, or Folia
• Version: 1.17.x - 1.21.x
• Java: 17 or higher

1. Download the latest version from Releases or BuiltByBit

2. Place the JAR file in your server's plugins folder

3. Restart your server (not reload!)

4. Configure the plugin in plugins/ServerBooster/

5. Enjoy better performance!

ServerBooster uses multiple configuration files for better organization:

plugins/ServerBooster/
├── config_entity_limiter.yml # Entity spawn limits
├── config_optimize_entities.yml # Entity AI optimization
├── config_holo.yml # Item stacking & holograms
├── chunks_optimizer.yml # Chunk management
├── config_tps.yml # TPS-based commands
├── lang/ # Language files
│ ├── en_us.yml
│ └── es_es.yml
└── lang_limiter/
 └── en.yml

Controls how many entities can exist in a given area.

# Radius in blocks for entity counting
radius: 56
# Worlds where limiter is active
worlds:
 - world
 - world_nether
 - world_the_end
# Default limits for all entities
defaults:
 radius_max: 10 # Max entities of same type in radius
 chunk_max: 5 # Max entities of same type per chunk
 cull: 5 # Max entities kept on chunk unload
# Custom limits per entity type
limits:
 VILLAGER:
 radius_max: 15
 chunk_max: 8
 cull: -1 # -1 = never cull
 ZOMBIE:
 radius_max: 8
 chunk_max: 4
 cull: 3

Controls entity AI freezing and tracking.

# Distance from player to freeze entities
tracking-range: 35
# Worlds to optimize
worlds:
 - world
 - world_nether
# Ignore certain entities
ignore:
 custom-named: true # Don't freeze named mobs
 invulnerable: true # Don't freeze invulnerable
 villagers: false # Freeze villagers (saves CPU!)
 armorstands: true # Don't freeze armor stands
 itemframes: true # Don't freeze item frames
# Trigger conditions
trigger-options:
 always:
 enabled: true
 untrack-ticks: 600 # 30 seconds
 when-tps-below:
 enabled: true
 value: 18.5
 untrack-ticks: 450

• Always: Constantly optimizes entities far from players
• When TPS Below: More aggressive optimization during lag

Controls item merging and hologram display.

# Worlds where stacking is active
worlds:
 - world
merge:
 # Force merge nearby items
 force_merge:
 enabled: true
 radius: 7 # Search radius for items
 max_stack: 512 # Maximum stack size
 # Hologram above stacked items
 hologram:
 enabled: true
 format: "&f{name} &bx{amount}"
 glow:
 enabled: true
 color: "AQUA"
# Items that should never be merged
blacklist:
 - DRAGON_EGG
 - ELYTRA

Controls chunk unloading and physics detection.

# Automatic chunk unloading
unload-chunks:
 enabled: true
 interval-ticks: 6000 # Check every 5 minutes
 worlds:
 - world
 - world_nether
 log:
 unload: true
# Lag machine detection
block-physics-lag-detector:
 enabled: true
 low-tps: 18.0
 lag:
 warning-threshold: 950000
 notify-op: true
 cancel-event: false
# Elytra speed limits
optimize-elytra:
 reptide-trident-nerf:
 enabled: true
 delay: 100 # Ticks between uses
 firework-nerf:
 enabled: true
 delay: 60

Execute commands automatically when TPS drops.

tps-commands:
 enabled: true
 commands:
 emergency:
 tps: 14.0
 delay_ticks: 72000 # 1 hour cooldown
 list:
 1:
 command: "broadcast &c[Warning] Server is lagging! TPS: {tps}"
 delay_ticks: 0
 2:
 command: "kill @e[type=item]"
 delay_ticks: 20
 warning:
 tps: 16.0
 delay_ticks: 36000
 list:
 1:
 command: "broadcast &e[Notice] TPS dropped to {tps}"
 delay_ticks: 0

1. Start Conservative

   • Begin with default settings
   • Monitor TPS with /sb tps
   • Gradually adjust limits

2. Optimize Mob Farms

   # In config_entity_limiter.yml
   limits:
    GUARDIAN:
    chunk_max: 15
    radius_max: 30
    IRON_GOLEM:
    chunk_max: 5
    radius_max: 10

3. Reduce Villager Lag

   # In config_optimize_entities.yml
   ignore:
    villagers: false # Allow freezing!

4. Aggressive Item Stacking

   # In config_holo.yml
   force_merge:
    radius: 10
    max_stack: 1024

Important: On Paper 1.21+, the server automatically unloads chunks when players disconnect. ServerBooster's chunk optimizer is most useful for:

• Unloading chunks while players are online but have moved away
• Servers running older versions (1.17-1.20)
• Spigot servers (less aggressive than Paper)

ServerBooster supports multiple languages:

• English (en_us)
• Spanish (es_es)

To change language, edit the lang option in each config file.

If you're upgrading from the original ServerBooster:

1. Backup your old configuration
2. Delete the old plugin and config folder
3. Install this remastered version
4. Reconfigure using this guide

Configuration format has changed significantly. Manual migration is required.

Q: Does this work with Folia?

Yes! ServerBooster automatically detects Folia and uses region-based scheduling.

Q: Will frozen entities move again?

Yes! When a player approaches a frozen entity, its AI is instantly restored.

Q: Does item stacking cause duplication?

No! The stacking system has been thoroughly tested to prevent any duplication.

Q: Why don't I see chunks being unloaded?

On Paper 1.21+, the server already unloads chunks very efficiently. The optimizer works best when players are online and have moved away from areas.

Q: Can I disable specific modules?

Yes! Set enabled: false in each module's config file, then /sb reload.

Q: What's the difference between FREE and PREMIUM?

Nothing! Both versions are identical. PREMIUM just gives you early access (1-2 weeks earlier) and helps support the project.

Tested on a server with 50 players:

Results may vary depending on server configuration and player activity.

• Issues: GitHub Issues
• Premium Support: BuiltByBit

• Original Plugin: LoneDev (dev.lone) - Abandoned in 2023-2024
• Remastered by: SrCodex - 2025-Present
• Built with: Kotlin, Paper API, Coroutines

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_{Made with love for the Minecraft community}