- Loaders
- Fabric
- Downloads on Modrinth
- 278
- Followers on Modrinth
- 4
- versions
- 3
- Updated
- July 19, 2026Jul 19
- Published
- in 2026
At a glance
Install in the game only; not needed on the server
Allows the use of the 1.21.11 model format in older versions with the help of black magic, specifically allowing all three axis (XYZ) rotation and incrementes larger/smaller than 22.5°, additionally removing the 3x3x3 size constraint.
Example

Model
File: assets/minecraft/models/block/diamond_block.json
{
"format_version": "1.21.11",
"textures": {
"all": "block/diamond_block"
},
"elements": [
{
"from": [0, 0, 0],
"to": [16, 16, 16],
"rotation": {"x": 45, "y": 45, "z": 45, "origin": [8, 8, 8]},
"faces": {
"north": {"uv": [0, 0, 16, 16], "texture": "#all"},
"east": {"uv": [0, 0, 16, 16], "texture": "#all"},
"south": {"uv": [0, 0, 16, 16], "texture": "#all"},
"west": {"uv": [0, 0, 16, 16], "texture": "#all"},
"up": {"uv": [0, 0, 16, 16], "texture": "#all"},
"down": {"uv": [0, 0, 16, 16], "texture": "#all"}
}
}
]
}Supports both rotation types:
All axis rotation
"rotation": {
"x": 45,
"y": 45,
"z": 45,
"origin": [
8,
8,
8
]
}Single axis rotation
"rotation": {
"angle": 45,
"axis": "y",
"origin": [
8,
8,
8
]
}Maven
repositories {
maven { url 'https://jitpack.io' }
}
dependencies {
modImplementation 'com.github.Nico44YT:ModernModelFormat:<version>'
}Version generally is comprised of "<mod_version>_<game_version_range>" e.g: "1.3.0-1.19.3-1.21.3"
Issues
If you have found an issue please report it on the github, along with (if applicable):
- any logs
- the model
- a screenshot
- the game version
- modlist
My models are not loading anymore
Try checking the model file for any extra brackets {} because Modern Model Format ensure a strict json validation.
Example:
[18:30:32] [Worker-Main-2/ERROR]: Failed to load model mod_id:models/item/example_item.json
com.google.gson.JsonSyntaxException: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 506 path $FAQ
How to install Modern Model Format?
Install Fabric for your Minecraft version, download Modern Model Format for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does Modern Model Format support?
Modern Model Format has builds for Minecraft 1.19.3–1.21.3.
Is Modern Model Format needed on the server?
Client only — no need to install it on the server

