CurseForge · Minecraft mod
GeckoJS
Use Geckolib to create animatable block/item/armor by KubeJS
Quick answer
Which GeckoJS release should I use?
GeckoJS-2101neoforge-1.6.0 targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 4 required mods have matching files.
Where it goes
Is GeckoJS required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does GeckoJS-2101neoforge-1.6.0 need?
GeckoJS-2101neoforge-1.6.0. Change the file and its required mods may change too.
Install KubeJS, GeckoLib, Better Advanced Tooltips, Rhino first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.
2 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add GeckoJS without breaking your instance.
Built for GeckoJS-2101neoforge-1.6.0. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use GeckoJS-2101neoforge-1.6.0. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install KubeJS, GeckoLib, Better Advanced Tooltips, Rhino first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside GeckoJS-2101neoforge-1.6.0. It opens that exact file at the source.
About this project
What does GeckoJS add?
Gecko JS
Use GeckoLib to create animatable block/item/armor by KubeJS
Simple Example
Startup script
StartupEvents.registry("block", event => {
const rotating = RawAnimation.begin().thenLoop("rotating");
event.create("geckojs:example_block", "animatable")
.box(1, 1, 1, 15, 15, 15, true)
.animatableBlockEntity(blockEntity => {
blockEntity.addController(state => state.setAndContinue(rotating))
})
.defaultGeoModel()
})
Model assets/geckojs/geo/block/example_block.geo.json
{
"format_version": "1.12.0",
"minecraft:geometry": [
{
"description": {
"identifier": "geometry.example_block",
"texture_width": 48,
"texture_height": 48,
"visible_bounds_width": 3,
"visible_bounds_height": 2.5,
"visible_bounds_offset": [0, 0.75, 0]
},
"bones": [
{
"name": "bone",
"pivot": [0, 8, 0],
"cubes": [
{
"origin": [-7, 1, -7],
"size": [14, 14, 14],
"uv": {
"north": {"uv": [0, 0], "uv_size": [14, 14]},
"east": {"uv": [0, 14], "uv_size": [14, 14]},
"south": {"uv": [14, 0], "uv_size": [14, 14]},
"west": {"uv": [14, 14], "uv_size": [14, 14]},
"up": {"uv": [0, 28], "uv_size": [14, 14]},
"down": {"uv": [28, 14], "uv_size": [14, -14]}
}
}
]
}
]
}
]
}
Animation assets/geckojs/animations/block/example_block.animations.json
{
"format_version": "1.8.0",
"animations": {
"rotating": {
"loop": true,
"animation_length": 3,
"bones": {
"bone": {
"rotation": {
"vector": ["Math.sin(query.anim_time*90)*180", "Math.cos(query.anim_time*90)*180", "Math.sin(query.anim_time*90)*180"]
}
}
}
}
},
"geckolib_format_version": 2
}
Texture assets/geckojs/textures/block/example_block.png

Project description from CurseForge.
Pick your setup
GeckoJS by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader build1.20.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
GeckoJS versions and loaders
GeckoJS-2101neoforge-1.6.0
GeckoJS-2101neoforge-1.6.0.jar
17 Jun 2026
GeckoJS-2001forge-1.6.0
GeckoJS-2001forge-1.6.0.jar
17 Jun 2026
GeckoJS-2001forge-1.5.2
GeckoJS-2001forge-1.5.2.jar
26 Mar 2025
GeckoJS-2001forge-1.5.0.jar
25 Feb 2024
GeckoJS-2001forge-1.4.0+hotfix2.jar
GeckoJS-2001forge-1.4.0 (1).jar
24 Feb 2024
GeckoJS-2001forge-1.4.0+hotfix.jar
GeckoJS-2001forge-1.4.0.jar
23 Feb 2024
GeckoJS-2001forge-1.4.0.jar
23 Feb 2024
GeckoJS-2001forge-1.3.0.jar
22 Feb 2024
Looking for an older file? The official CurseForge project page is in Resources.