
JsonEM -Mult
Migrate from Fabric 1.20.1 [Json Entity Models]
About this Mod
Mirgate from JsonEM
JsonEM (Json Entity Models)
Library for modders, resource pack makers, and modpack makers to create and edit entity models WITH JSON
Does not work with OptiFine format!
Generate Reference Entity Models:
If you'd like to dump json versions of all entity models (vanilla or modded) so that you can edit them easily with resource packs or use them as examples, here's how:
Launch the game, and then open the configuration file located at .minecraft/config/jsonem.properties.
Edit the second line of the file to be dump_models=true.
Re-launch the game. Navigate to the folder .minecraft/jsonem_dump.
Within this folder you should find all registered entity models dumped as json, formatted like a resource pack.
Use this format when editing or adding models with a resource pack.
Edit Models in Blockbench:
To edit models in Blockbench, install the plugin located in this repository.
- Download the file jsonem_models.js from this GitHub repository
- In Blockbench, navigate to File > Plugins, and at the top of the dialog click the icon for Load Plugin from File. Choose the jsonem_models.js file.
- Navigate to File > New and choose JsonEM Java Entity Model to begin editing.
- You can also File > Open Model to import a JsonEM json model file, such as those dumped from the game.
- To export your model for use with JsonEM, navigate to File > Export > Export JsonEM Java Entity Model and save the file.
- For Resource Pack/Modpack Makers:
- Complete the steps above to dump all entity models from your game or modpack.
- When editing your resource pack/modpack resources, add entity model json files as they are formatted in the dumped model folder.
Available Versions
How to Install JsonEM -Mult 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 (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "JsonEM -Mult". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.20.1
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
JsonEM -Mult 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 (1.21.1). You can switch loaders with one click in the panel.
Is JsonEM -Mult compatible with fabric and forge and neoforge and quilt?
JsonEM -Mult officially supports fabric, forge, neoforge, quilt for Minecraft 1.21.1, 1.20.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with JsonEM -Mult – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if JsonEM -Mult 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.
Similar Mods
Rent Modded Server
Install JsonEM -Mult with just one click on your server.