
Modrinth · Minecraft mod
Put A Plug In it! (PAPI)
A small mod that fixes Memory Leak issues, optimizes Memory Usage, and increases version/loader support for features of other Memory Leak Fix/Memory Optimization mods
Quick answer
Which Put A Plug In it! (PAPI) release should I use?
Put A Plug In it! (PAPI) forge-1.18.2-1.3.0 targets 1.18.2 with Forge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is Put A Plug In it! (PAPI) required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does Put A Plug In it! (PAPI) forge-1.18.2-1.3.0 need?
forge-1.18.2-1.3.0. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Put A Plug In it! (PAPI) without breaking your instance.
Built for Put A Plug In it! (PAPI) forge-1.18.2-1.3.0. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use forge-1.18.2-1.3.0. It targets 1.18.2 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside forge-1.18.2-1.3.0. It opens that exact file at the source.
About this project
What does Put A Plug In it! (PAPI) add?
Put A Plug In it! (PAPI) initially solved a Memory Leak I found with Sophisitacted Core while playing the "NightfallCraft - The Casket of Reveries" Modpack by P1nero
Sophisticated Core natively fixed the Memory Leak in their 1.20.1+ Forge & NeoForge versions, but the pre-1.20.1 and Fabric versions of the mod still have the glitch, which PAPI can be used to fix.
PAPI now also aims to find and solve as many Memory Leaks as possible, and integrate features and compatability for and from other mods, to make an all-in-one Memory Leak Fix and Memory Optimization mod, and to increase version and loader support for features of other Memory Leak Fix and Memory Optimization Mods.

Icon and Name by lyftos, inspired by Plug & Play by Morio von Rickenbach, and Michael Frei (Playables)
Core Features
- Sophisticated Core ItemStackKey leak mitigation
- ModelManager cache cleanup when the client leaves a world
/papi leak reportdiagnostics- heap, GC, watched-object sizes and client model-cache counts written to a file
- an opt-in
/papi leak dumpHeapfor the full heap dump
- Prevent known crashes between RaphiMC's ImmediatelyFast and FX (FX_PR0CESS)'s Memory Leak Fix (MemoryLeakFix)
- Prevent Screen-Freeze Glitch caused by RaphiMC's ImmediatelyFast on Intel IGP's and GPU's
Features Derrived or Adapted From Other Mods
- Biome Temperature cache sharing
- LivingEntity brain-memory clear on unload
- TagKey weak intern pool
- Drowned navigation cleanup
- Crosshair target / hit result reset
- Huge screenshot buffer free-on-failure
- Texture read-buffer free-on-failure
pietro-lopes' AllTheLeaks
- Vanilla
EntityTickListpassive-map clear - per-mod client leak fixes for:
- EMI — clear recipe history on respawn
- JEI — clear RecipeTransferManager and the Grindstone menu
- Jade — clear ObjectDataCenter and the hideModName cache
- Iceberg — clear EntityCollector and CustomItemRenderer caches
- Sophisticated Core — invalidate StorageWrapperRepository on world unload
- Supplementaries — run its cache clearers on server stop
- Entity Texture Features — release player-texture state on respawn
- Entity Model Features / ETF — drop renderer state after each render
I intend to add more Memory Leak fixes in the future so if you know of any mods or modpacks that you suspect of having Memory Leak issues, let me know in the comments!
Project description from Modrinth.
Pick your setup
Put A Plug In it! (PAPI) by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
2 loader builds26.1.2
2 loader builds26.1.1
2 loader builds26.1
2 loader builds1.21.11
2 loader builds1.21.10
2 loader builds1.21.9
2 loader builds1.21.8
2 loader builds1.21.7
2 loader builds1.21.6
2 loader builds1.21.5
2 loader buildsShowing the newest 12 of 37 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Put A Plug In it! (PAPI) versions and loaders
forge-1.18.2-1.3.0
papi-forge-1.18.2-1.3.0.jar
7 Oct 2026
fabric-1.19.2-1.3.0
papi-fabric-1.19.2-1.3.0.jar
7 Oct 2026
forge-1.19.2-1.3.0
papi-forge-1.19.2-1.3.0.jar
7 Oct 2026
fabric-1.19.4-1.3.0
papi-fabric-1.19.4-1.3.0.jar
7 Oct 2026
fabric-1.20.1-1.3.0
papi-fabric-1.20.1-1.3.0.jar
7 Oct 2026
forge-1.20.1-1.3.0
papi-forge-1.20.1-1.3.0.jar
7 Oct 2026
fabric-1.20.4-1.3.0
papi-fabric-1.20.4-1.3.0.jar
7 Oct 2026
neoforge-1.20.4-1.3.0
papi-neoforge-1.20.4-1.3.0.jar
7 Oct 2026
fabric-1.21.1-1.3.0
papi-fabric-1.21.1-1.3.0.jar
7 Oct 2026
neoforge-1.21.1-1.3.0
papi-neoforge-1.21.1-1.3.0.jar
7 Oct 2026
fabric-1.21.4-1.3.0
papi-fabric-1.21.4-1.3.0.jar
7 Oct 2026
neoforge-1.21.4-1.3.0
papi-neoforge-1.21.4-1.3.0.jar
7 Oct 2026
Looking for an older file? The official Modrinth project page is in Resources.