ItemsAdder v4.0.17

Create items, blocks, mobs, emojis, and more with automatic resourcepack generation!
Breaking custom blocks causes chunks to load and server hangs in some rare cases
ItemsAdder.Advanced.injectItemModifier not working
Crops-Stream-Tick ArrayIndexOutOfBoundsException causes Server thread infinite loop in Long2ObjectOpenHashMap.get() → Watchdog crash
Trident duplication issue
Villagers can buy custom blocks like paper
Held Offhand Event not Working Properly
Items don’t inherit events when using variant_of
Resourcepack links from Dropbox, Google drive and similar websites do not work anymore
Smithing recipe does not work on 1.21.8
Multi-break causes doors and beds to be cut in half
Can't find file ModelEngine
Noteblock issues
NETHERITE_SWORD no longer supported / Failed to generate vanilla model
Resourcepack generation fails: No vanilla model file for material NETHERITE_SPEAR
Plugin thinks there's a lowercase b in my crafting recipes, while there's not.
Add a setting to disable duplicate images warnings
Missing Item Textures in 1.21.11 (Final 4.0.16)
Fix text effects shaders 21.6
Emotes - disable the legacy shader method by default and enable the modern method instead
Some resourcepack folders ignored if multiple structures are used
Glow not working on 26.1.1
26.1+ Custom entities mount not working
Display entities furniture lose customized rotations
iazip not working, Original model of material PAPER has errors
Plugin softlocks when using lists in textures for graphics option
Vanilla block entity inventory preview bug
26.1.2 support
Item display furniture have y+1 offset by default for no reason when placed on ceiling
NullPointerException: Cannot read field "aoy" because "<parameter2>.xg" is null when breaking blocks
Atlas merging
API method to obtain configuration section of an item
Self hosting overhaul
New methods & events API
ERROR: Input of fragment shader 'lightMapColor' not written by vertex shader
/iadebug get-item-with-custom-model-data
Plugin not working on 1.21.4 anymore
Removed RealisticWorldGenerator the plugin is no longer maintained so there is no point into maintaining compatibility
Fix break_particles_material when using behaviours naming instead of legacy specific_properties
Recipes loading optimization
Warn when multiple hosting methods selected
Resourcepack not generated automatically on first install
Events before & after a player sit on a furniture
Events before & after a player opens a trade machine
Implement replace_furniture and remove_furniture actions
Crafting duplication bug
Blocks populators/decorators memory leak on plugin reload
Tridents duplication bug
Trident duplication 2
In Creative mode, when pick block, it appears to "flash"
place_furniture does not work
Overlay of other packs are not merged
Blocks can only be placed fast vertically
Custom entities error java.lang.IllegalArgumentException: attribute
merge_other_plugins_resourcepacks_folders duplication assets folder
Citizens 2.0.40 - NullPointerException: Cannot invoke "java.lang.reflect.Method
Implement third person view for emotes
Emoji parsing in chat causing lag
BlockPlaceEvent being broken for placing block onto itemsadder custom block
shoot_particle - IllegalStateException: Asynchronous getNearbyEntities
Remove old effects settings from config.yml
REAL_NOTE doesnt remove on explosion
complex_furniture fixed_rotation
Implement furniture_consumable behaviour
Crops block outline not refreshing when using bonemeal
fixed vanilla models not used when generating model via graphics
Some configuration (like replace_furniture) won't work if key has no namespace specified
show_in_ia_gui not working on template items
Crops bonemeal duplication bug
Cannot invoke "String.endsWith(String)" because the return value of "itemsadder.m.aqx.mF()" is null
Custom TNT primed sound not playing
Custom TNT not removing old block before exploding
World rules ignore all the negative rules if * is specified
Crops not exploding with TNT
ItemsAdder executes getNearbyPlayers asynchronously in Entities-Tick on Paper 1.21.x
surface_populators dont work in the nether
Setting to disable mined unknown block message
[Beta] OutOfMemoryError when adding more ItemsAdder config files
ia_overlay_1_20_5_plus mentioned in pack.mcmeta even when it's not included in the pack generated folder
[Beta] Custom entities textures not working
4.0.16 BETA 4: Message order for other plugins are not being respected. [Server Breaking]
Some textures are not being applied correctly.
Better pack obfuscation
Failed invoking download tasks for Minecraft assets version 1.21.8 ConcurrentModificationException
Implement opposite_direction for complex_furniture
[Beta] Shields, fishing rods and similar status models not loading textures on 1.21.11
graphics with no parent specified always fallback to item/generated
complex-furniture doesnt place correctly from certain angles on walls
1.21.11 not loading textures
complex_furniture implement fixed_position setting
CompletionException: z: Stitching
thrown tridents also break after /iareload or /iazip
Symbol does not appear in the shape
Models referenced without namespace do not work in 1.21.11
Warn about invalid parent in models
Cannot measure distance between world and world_nether
Warn about duplicate PNG files
Failed to create instance for class: null in 1.21.4 and lower
Remove legacy atlas_support setting
Custom trident graphical entity still showing when inventory is full and the item is dropped
Skip folders that start by . (like .vscode)
RoseLoot compatibility - block break event priority
[Durability BUG] Decrement Durability 5 Error
[ITEM FLAGS BUG] HIDE_ATTRIBUTES
Directional blocks do not inherit events from the base block
Some generated models have vanilla layer1 shown on top of the layer0
Merged resourcepack produces invalid shader (rendertype_entity_translucent) on 1.20.4 clients with Iris (works on 4.0.10-hotfix-1)
Cannot invoke "org.bukkit.configuration.ConfigurationSection.contains(String)" because "section" is null
NumberFormatException
Durability not decreasing when breaking custom blocks
Custom texture on Nether_Wart dont generate
Custom cooking recipes cause vanilla materials to become smeltable
when player is freezed in the air, emotes are still falling
bow.arrow_damage does not seem to work or feature was removed?
4.0.13-beta-6 - texture path not added to atlas
Fix custom_model_data value ignored - only legacy model_id works
1.21.4 - Add tints to modern items
/iareload --scripts-only not working at all and also scripts being recompiled on each reload
New modern graphics don't work with blocks
Update glowing entities to 1.21.7
Jukebox sounds: Failed to handle packet ServerboundSelectKnownPacks
Inherit every property when using variant_of
Automatic fix for dark items in inventory and missing particles
IA not showing texture for Tripwire_hook material
Use PAPER as default material if not specified
Modernize the resource properties
DummyRegionFile.loadChunk() called, something is wrong when disabling custom blocks
1.21.8 assets not downloaded
Trident with no icon specified use the vanilla trident icon instead of the 3D model
Chest minecart - Failed to serialize
Smoother emotes start
Implement Java language in scripts
CustomModelData bug
Support for hand_animation_on_swap
1.21.4 - Implement item_model alternative to CustomModelData
Ignore __MACOSX folders
Do not play custom block step sounds when entities walk on them
Rename resource-pack.custom_blocks_sounds_patch.step.enabled to resource-pack.custom_blocks_sounds_patch.step
place_furniture and similar events depend on the order of items in the yml files
Remove resource-pack.zip.custom_armors_shaders_legacy.enabled, use the shaders settings instead
Itemsadder causing lag
Customize width and height of item_display render
1.21.8 - Plugin compatibility
Optimized HUDs calculation code
Little optimization of the armor/emotes shader
HUDs wrong location sometimes when showing/hiding other HUDs
1.21.6+ /e book not opening
ClassNotFoundException: org.fusesource.jansi.Ansi in some cases
Fix breaking animation blocks injected stuck in some cases
Fix execute_command placeholders not replaced on block break
Resourcepack not applied on join before ItemsAdder completely loaded
Add missing translation lines
protection_2 not working on some resourcepacks
protection_3 resourcepack
Custom ttf font breaks font images
Client console spam Missing texture references in model particle
Rename resource-pack.zip.custom_armors_shaders_legacy.vanilla.generate_textures to resource-pack.zip.custom_armors_shaders_legacy.enabled
1.21.5 - NoSuchMethodError: 'void org.bukkit.command.CommandSender.sendMessage(net.md_5.bungee.api.chat.BaseComponent[])'
Rename command /iaitem enable-item-auto-update
confirm-command missing in translations
Custom Entities and Emotes optimizations
overwrite_leather_layers option cannot be set to false
1.21.4 LeafMC ItemsAdder 4.0.10 Error resolving libraries
Fix Glow api stalling the server if it is not compatible with that version
1.21.6 - Update glow api
Fix 1.21.5 loading (FastNBT)
Optimize default assets extraction
Recipes loading optimization
title_color in ia_gui.yml doesn't work
java.lang.ClassCastException: class net.minecraft.core.MappedRegistry$1 cannot be cast to class net.minecraft.core.MappedRegistry
Plugin purchase welcome message dialog (1.21.6+)
Automatically download vanilla game assets
1.21.6 - Implement oversized_in_gui to fix big items in GUIs
Implement --skip-recipes argument for /iareload and /iazip
1.21.7 - Plugin compatibility
java.lang.IllegalArgumentException: attribute
thirst bar infinite
Could not find artifact
Red resourcepack background in 1.21.5+
Pack not applying for 1.21.5, but working for 1.21.4 & 1.21.6
Cannot invoke "org.bukkit.craftbukkit.entity.CraftLivingEntity.getHandle()" because "<local4>" is null
Display name custom colors
Scripting engine - do not include jspp files in the resourcepack
Failed to load fallback model for material template_lantern_item. Skipping 1.21.4+ compatibility file creation.
[4.0.11 bug] Updating the HUD for one player, seems to update this for everyone
Possible fix for 1.21.5 client crash on AMD GPUs
Unable to generate optifine cit folder on ItemsAdder version 4.0.11
Custom entity rotation not working
Remove annoying [Pack] Extracting internal contents from .jar message on start even when no file is extracted
1.21.6 - Plugin compatibility
1.21.6 - text effects not working anymore
1.21.6 - Vanilla (and emotes) player skulls not showing the player skin anymore
1.21.6 - Emotes not working anymore
Fix hide scoreboard numbers
Custom entities bones rotation is wrong during death animation
Missing item not returned after emote played
Custom entities - set entity goals
Custom entities spawn REPLACE causes excessive amount of mobs spawned
max_per_chunk custom entities ignored on entities_populators
Fix WRITABLE_BOOK issues
Fix fix_unstackable_items_on_click issues
Native 2D icons (1.21.2+ client only)
FFmpeg issues
Scripting engine - fix compilation issues, wrong script type detection
Scripting engine - Better compile errors logging
ignore_spawner in mobs loots not working for already spawned entities on server restart
Fix metadata and NBT loot rules not working anymore
Scripting engine - utility methods
Massive FPS drop when switching furniture from item_frame to item_display
Support for custom tridents
Option to remove or recolor shadow of specific font image
Emotes background loop music
texteffects don't apply to fontimages
Better 2D icon for placeable (blocks, furniture, vehicles)
Symlinking contents directory stopped working after version 3.6.3-beta-8 on linux
Emojis color replaced by chat formatting Discord SRV shows unicode instead of the placeholder
Keep items updated with configurations
1.21.4 - crossbow firework model not working
[Bug] Mushroom block doesn't consume axe durability (1.21.5)
Thank you all for your reports and suggestions ❤️

🎉 New Features

🐉 Custom Entities Improvements

💃 Emotes Improvements

🛠️ Important Bugfixes

⚙️ General Improvements

✨ Enjoy the new version and keep reporting your feedback!
💬 Join our Discord for more news and help 🚀
Buy a license now
$24.99
EULA
Standard EULA
Use on any projects you own with attribution
Support
Standard
Includes:
Download the resource
Access new updates
Support from the creator
Support duration
Lifetime
244,809 Views
3,077 Purchases
3,253 Downloads
Jun 5, 2019 Published
May 29, 2026 Updated
5.00 star(s)
Average rating (52)
3.9 MB File size
Open source
  1. No
DRM-free
  1. No
Unobfuscated
  1. No
Type
  1. Gameplay
  1. World
  1. Library
Supported software
  1. Spigot
  1. Paper
Supported versions
  1. 26.1
  1. 1.21.11
  1. 1.21.8
  1. 1.21.5
  1. 1.21.4
  1. 1.21.2
  1. 1.21
  1. 1.20
Supported languages
  1. English
  1. Spanish
  1. Russian
  1. German
  1. French
  1. Portugese
  1. Polish
  1. Turkish
  1. Chinese
  1. Italian
  1. Dutch
  1. Korean
  1. Czech
  1. Thai
  1. Japanese
  1. Hebrew
Includes DRM
Yes
Source access (legacy)
Closed source & obfuscated
Creator
Owner
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244,809 Views
3,077 Purchases
3,253 Downloads
Jun 5, 2019 Published
May 29, 2026 Updated
5.00 star(s)
Average rating (52)
3.9 MB File size
Open source
  1. No
DRM-free
  1. No
Unobfuscated
  1. No
Type
  1. Gameplay
  1. World
  1. Library
Supported software
  1. Spigot
  1. Paper
Supported versions
  1. 26.1
  1. 1.21.11
  1. 1.21.8
  1. 1.21.5
  1. 1.21.4
  1. 1.21.2
  1. 1.21
  1. 1.20
Supported languages
  1. English
  1. Spanish
  1. Russian
  1. German
  1. French
  1. Portugese
  1. Polish
  1. Turkish
  1. Chinese
  1. Italian
  1. Dutch
  1. Korean
  1. Czech
  1. Thai
  1. Japanese
  1. Hebrew
Includes DRM
Yes
Source access (legacy)
Closed source & obfuscated
Creator
Owner
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