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LibJF

Mod

by JFronny

A library for my mods

Type

Mod

CurseForge Downloads

5,401,882

CurseForge ID

482600

Modrinth Downloads

16,842,032

Modrinth ID

WKwQAwke

Last Updated

Nov 7, 2026

Description

Please excuse the state of this description, it seems CurseForge broke my formatting

LibJF is a library for my smaller mods which contains several common components.

Namely it provides:

  • a complete config system with UIs, commands, compile-time codegen, presets, verifiers, etc

  • a framework for manipulating loaded data and resources

  • two new tags (which you can also use in data packs):

    • libjf:overpowered: if an entity only wears armor items with this tag, it will become invulnerable

    • libjf:shulker_boxes_illegal: items with this tag cannot be placed inside shulker boxes. Intended to be used for backpacks or similar items

  • utility code for serialization, script loading, co-processes, IO, etc.

  • network utilities including a HTTP client and server

  • a configurable and extensible translation system supporting various providers

  • utilities for early initialization and ASM patching

If a mod is made by me, it is generally safe to assume it requires LibJF (or ships with parts of it)

If you want to use LibJF yourself, you can find documentation here

Contact

Compatibility

Mod Loaders

Client Neoforge Server

Game Versions

26.3

Recommended Gear

Affiliate

Hardware and extras that pair well with this mod.

Mini PC for self-hosting

Mini PC for Self-Hosting

A low-power box that can sit in a cupboard and run a modded server around the clock.

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As an Amazon Associate I earn from qualifying purchases.

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Included in Modpacks (459)

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COBBLEVERSE - Pokemon Adventure [Cobblemon] COBBLEVERSE - Pokemon Adventure [Cobblemon] Sodium Plus Sodium Plus Vanilla Perfected Vanilla Perfected SkyBlock Enhanced SkyBlock Enhanced Fresh & Smooth Fresh & Smooth 红石生电优化【Redstone Survival Optimization】 红石生电优化【Redstone Survival Optimization】 OptiFine for Fabric OptiFine for Fabric Lost World - The Broken Script Lost World - The Broken Script Actions & Better [ON JAVA] Actions & Better [ON JAVA] Act. & Better Act. & Better Cobblemon Islands Server Modpack Cobblemon Islands Server Modpack Sensible MC Sensible MC Axas Perfect Pack Axas Perfect Pack Frost Client Frost Client Fabri's Frontiers Fabri's Frontiers Keo Vanilla Keo Vanilla Aeronautics - Create Customised Aeronautics - Create Customised Exosphere 2 Exosphere 2 OneClient OneClient Medieval Immersed Medieval Immersed Bedrock Reloaded Bedrock Reloaded DayOfMind DayOfMind Easycraft (Official) Easycraft (Official) Kuri's Fresh (Actions & Stuffs recreation) Kuri's Fresh (Actions & Stuffs recreation) SkyBlock Enhanced SkyBlock Enhanced Actions & Java Actions & Java Tales Tales A Cozy Mizuno World A Cozy Mizuno World Cobblemon - Poke Legends Cobblemon - Poke Legends Elixir Elixir ALAND's Immersive Hypixel SkyBlock ALAND's Immersive Hypixel SkyBlock Fabric Boosted Fabric Boosted Wynnic Enchantments Wynnic Enchantments CastCrafter CA14 Mische CastCrafter CA14 Mische Void's essentially optimized pack Void's essentially optimized pack Exosphere 2 + Create (Aeronautics) Exosphere 2 + Create (Aeronautics) OneClient (SkyBlock) OneClient (SkyBlock) Keo vanilla Keo vanilla BM - Exosphere 2 Lite BM - Exosphere 2 Lite Client+ Client+ ALAND's Optimized Hypixel SkyBlock ALAND's Optimized Hypixel SkyBlock Vanilla Reimagined+ Vanilla Reimagined+ Ultimately Optimized - Vanilla but Better! Ultimately Optimized - Vanilla but Better! Ryan Cliffords VR Experience 3 Ryan Cliffords VR Experience 3 OptiFinium OptiFinium PVP Pack [PvP , FPS Boost , Performance , Optimization , Low Latency , Competitive , 26.2 , Modern PVP , pvppack , pvp] PVP Pack [PvP , FPS Boost , Performance , Optimization , Low Latency , Competitive , 26.2 , Modern PVP , pvppack , pvp] Better FPS Better FPS Actions and Smooth Actions and Smooth Gobba's Crystal PVP Modpack Gobba's Crystal PVP Modpack Crystal Verse Crystal Verse CobbleVerse + (For servers with friends) CobbleVerse + (For servers with friends) Plutonium Plutonium Simple Performance Simple Performance Azure Visuals Azure Visuals Origin Realms Beyond Origin Realms Beyond Vanilla Plus Vanilla Plus Core Optimized Core Optimized zOptimized zOptimized StudiousGoose's SMP Additions StudiousGoose's SMP Additions Ranked Optimized Ranked Optimized BastiGHG's CraftAttack 13 Mische BastiGHG's CraftAttack 13 Mische Aeronautics Dream Aeronautics Dream Cobblenautics! Cobblenautics! Vanilla Voyage - The Definitive Vanilla+ Pack Vanilla Voyage - The Definitive Vanilla+ Pack Diamond Age Diamond Age duziy's PvP Optimized duziy's PvP Optimized ContentCreatorsTool ContentCreatorsTool Kuri's FreshVanilla Kuri's FreshVanilla TABSMP Modpack TABSMP Modpack Doge Client Doge Client Revelations 3 - just Tech N' building! Revelations 3 - just Tech N' building! Qearioz's Optimized PvP & SMP Qearioz's Optimized PvP & SMP SBooster Official SBooster Official Beautifully Optimized Beautifully Optimized NSCOP生电客户端 NSCOP生电客户端 Lumen Packs Lumen Packs CobblemonCove - Cobblemon CobblemonCove - Cobblemon Cobblemon Adventure - Pokemon modpack Cobblemon Adventure - Pokemon modpack SimplyVanilla SimplyVanilla BottomlessThought's Realism BottomlessThought's Realism The Stuff of Legend The Stuff of Legend Mirabilis - Vanilla Plus Plus! Mirabilis - Vanilla Plus Plus! OptiCool OptiCool Java & Stuff Java & Stuff Plants & Minecraft Plants & Minecraft Client Side + | performance boosts + visual upgrades + quality of life changes Client Side + | performance boosts + visual upgrades + quality of life changes Helix Modpack Helix Modpack MineboxModPack MineboxModPack Realistic Minecraft - Frealism Realistic Minecraft - Frealism Optimal Survival Optimal Survival NeoCraft Gardens & Gadgetry NeoCraft Gardens & Gadgetry RedstoneToolkit RedstoneToolkit Create: Physics And Aeronautics Create: Physics And Aeronautics editon's Modpack editon's Modpack cloudmoon cloudmoon Immersive Vanilla Immersive Vanilla Freshly Textured Freshly Textured Borukva Modpack Borukva Modpack emad modpack emad modpack Chill Chill

External Resources

CurseForge Modrinth Source Code Wiki Issues