
ModelShifter
ModelShifter allows you to change all players into cats, ghasts, and many more custom models completely client-side, which makes it work on every server!
Screenshots




About this Mod

ModelShifter allows you to change the appearance of players completely client-side, while using the power of mods to add way more cool details than a simple resource pack ever could! Change yourself and others into cats, ghasts and many more pre-defined models.
Ever wanted to play a minigame with everyone being a cat? Well, now it's possible!
Features
- Works like a resource pack: ModelShifter allows you to change player models completely client-side, so that only you will be able to see them, even if other players look different
- Choose from a wide range of models: The mod includes plenty of custom-made models for your player, with a lot more still to come in future updates (take a look at the Gallery for some examples)
- Model Selection GUI: Change or disable your custom player model through ModelShifter's unique GUI, which can be accessed through the new purple button in the optios menu
- Works on every Server: Since ModelShifter runs completely client-side and only introduces cosmetic changes, it can be used on every server without creating any issues with anticheats or similar problems!
Models
Made by EgertSUS:
- Cat
- Among Us
Made by bug_finder:
- Armadillo
- Chest
- Creaking
- Crab
- Croissant
- Enderman
- Fly
- Flat player
- Frog
- Ghast
- Square
- Wither
Made by Domplanto:
- Dinosaur
- Baby
Installation
ModelShifter is compatible with Fabric, on versions 1.20.6 up to 1.21.1 and can be installed through the Modrinth app, as well as through other launchers with Modrinth support.
The mod requires GeckoLib to work, which will automatically be added to your mods if you install ModelShifter through the modrinth app.
Video
Watch on YouTube
Support / Credits
This mod is part of Membercat Studios by KasaiSora and has been created by:
- codingcat: Developer
- EgertSUS: Model & animation creator
- bug_finder: Model & animation creator
- Domplanto: Model & animation creator / Developer
Also thanks to the following people for helping out with the mod:
- Azy: Translator (Bosnian)
- Ynntro: Translator (French and Russian)
- Mazurex: Translator (Polish)
- KasaiSora: Translator (Dutch)
- Random_Chad: Translator (Chinese and Japanese)
- Vaiskiainen: Translator (Finnish)
- dec123: Translator (Czech and Slovakian)
To report any issues, receive support or tell us your feedback, join our Discord Server or create an issue on GitHub if you discover any bugs.
Available Versions
How to Install ModelShifter 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 (1.21.4).
Install Mod
Open the mod browser in the dashboard and search for "ModelShifter". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.4, 1.21.3, 1.21.1 (+4 more)
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
ModelShifter 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 (1.21.4). You can switch loaders with one click in the panel.
Is ModelShifter compatible with fabric and quilt?
ModelShifter officially supports fabric, quilt for Minecraft 1.21.4, 1.21.3, 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with ModelShifter – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if ModelShifter 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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