
Custom Model Data Viewer
List all items with custom model data
Screenshots


About this Mod
CustomModelDataViewer is a lightweight mod that adds a dedicated creative tab for all items using the new 1.21.4+ CustomModelDataComponent. It automatically detects any items referencing a customModelData string (like in the example .json snippet) and organizes them in one convenient location. This makes it easier for resource pack creators and modders to quickly review, test, and manage custom item models without searching through standard tabs or multiple files.
Example Item:
assets/minecraft/items/brown_dye.json
{
"model": {
"type": "minecraft:select",
"property": "minecraft:custom_model_data",
"cases": [
{
"when": "old_hat",
"model": {
"type": "minecraft:model",
"model": "skyrealm:item/hats/old_hat",
"tints": [
{
"type": "minecraft:custom_model_data",
"default": 15702017
}
]
}
}
],
"fallback": {
"type": "minecraft:model",
"model": "minecraft:item/brown_dye"
}
}
}
Available Versions
How to Install Custom Model Data Viewer on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1.2).
Install Mod
Open the mod browser in the dashboard and search for "Custom Model Data Viewer". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.2, 1.21.11, 1.21.10 (+5 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Custom Model Data Viewer server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1.2). You can switch loaders with one click in the panel.
Is Custom Model Data Viewer compatible with fabric?
Custom Model Data Viewer officially supports fabric for Minecraft 26.1.2, 1.21.11, 1.21.10. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Custom Model Data Viewer – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Custom Model Data Viewer consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Custom Model Data Viewer with just one click on your server.