Universal ClearLag
by Trollionaire
Universal ClearLag is a server-side utility for removing and limiting entities that build up on a Minecraft server, with cleanup rules that server owners configure.
What it does
The mod reduces the load from entities that a server does not need. Its automatic cleanup removes dropped items and selected mobs on a schedule, and it can prevent mobs from spawning in the first place. Spawn prevention applies to future spawn attempts, so entities already in the world stay there unless a cleanup command or the scheduled policy removes them.
Only the server needs the mod, so players join without installing it. Files exist for Forge and NeoForge across eight release versions, 1.6.4 – 1.21.11, and the mod is released under All rights reserved, so it is not open source. The newest builds are 2.1.0.1 for 1.20.1 on Forge and 2.1.0.1 for 1.21.11 on NeoForge, both dated 2026-10-06.
Its configuration is validated when it loads and can be reloaded while the server runs. Spawn checks use cached entity rules, and entities are scanned only when an actual cleanup occurs, which keeps the mod's own overhead low.
Key features
Automatic cleanup
Scheduled cleanup removes loaded non-player living entities such as slimes, villagers, golems, named mobs, tamed mobs and bosses.
Spawn prevention
Selected mobs can be blocked from spawning, which limits new entities without deleting existing ones.
Manual entity clearing
An administrative command removes entities on demand, separate from the scheduled rules, with an older spelling also supported.
Protected entities
Armor stands, projectiles, dropped items and other nonliving utility entities stay out of cleanup, along with players.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Busy survival servers
Server owners can keep dropped items and mob counts in check on long-running worlds.
Older Minecraft versions
Servers on 1.6.4 – 1.12.2 can use the administrative removal command, which targets specific entity types.
Who it’s for: Server owners who need to manage cleanup and mob spawning on several Minecraft releases can use this mod for that. Players on a client need nothing from this mod.
Questions
Does Universal ClearLag need to be installed on the client?
Does spawn prevention remove mobs that already exist?
Which loaders and versions does Universal ClearLag support?
In the catalog
Universal ClearLag is one of 4,058 Storage mods on ModsFinder, and one of 1,886 Storage mods for Forge. 19,862 mods support Minecraft 1.21.11.
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What the author says
Universal ClearLag is a lightweight server utility for reducing unnecessary entity load and giving server owners direct control over cleanup and mob spawning across multiple Minecraft versions. Originally focused on dropped-item cleanup, ClearLag now includes configurable mob cleanup, live configuration reloading…
Official listing
- Modrinth page
- modrinth.com/mod/federal-clearlag
- Owner
- Trollionaire
- Published
- 2026-05-14
- Updated on Modrinth
- 2026-10-06
- Facts verified
- 2026-10-15