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JsonJei

Creating jei categories and recipes from json.
by zSemper
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52 downloads
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Updated Jul 6, 2026
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Addons API and Library Server Utility

This mod is still in beta, bugs may occur.

Requires Jei

Json Jei

A mod about adding custom jei categories and recipes via data- and resource-packs. Useful for modpack creator to show custom functionalities or recipes inside jei. A full documentation can be found: here


Categories

Jei uses categories to show different recipes. To create a category the JSON file must be placed in a specific path: data/[namespace]/jei_category. The JSON for a category is made up of three different parts

  1. Category

  2. Recipe Layout

  3. Rendering

Even though the jei_category folder is inside the data folder structure, the JSONs inside are not affected by the /reload command. To reload the categories, you have to restart Minecraft.

Recipes

Recipes for the categories are not placed inside the recipe folder like normal recipes. These custom recipes have to be placed inside the data/[namespace]/jei_recipe folder to be registered by the mod.

Recipes

Like normal recipes, custom recipes can also be placed in subfolder inside the jei_recipe folder and can be reloaded using the /reload command.


Example

Under docs/example is a working data- and resource-pack that can be used as reference alongside the documentation.

Example


Feature request

Feature requests are always welcome to expand this mod.

JsonJei 1.0.0 1.21.1
MC Client, 1.21.1, NeoForge, Server
Release 2026-02-07 Get

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