entitydump

Entity Dumper

A simple utility mod to export all registered entities to JSON format.

What does it do?

Entity Dumper automatically generates a clean JSON file containing all registered entity IDs from your Minecraft world, including entities from all installed mods.

Features

• ✅ Automatic export – No commands needed, just join a world
• ✅ Clean output – Simple JSON array with entity registry names only
• ✅ Mod compatible – Works with any modpack and detects all modded entities
• ✅ Lightweight – Client-side only, minimal performance impact
• ✅ Developer friendly – Perfect for modpack creators and developers

How to use

1. Install the mod in your mods/ folder
2. Launch Minecraft and join any world (singleplayer or multiplayer)
3. Wait 3 seconds after joining
4. Check your .minecraft/ folder for entities_list.json

Output format

{
  "total_entities": 1134,
  "entities": [
    "minecraft:allay",
    "minecraft:zombie",
    "modname:custom_entity",
    "..."
  ]
}

Use cases

• Modpack development – Inventory all entities in your pack
• Data analysis – See which mods add the most entities
• Configuration – Easy reference for entity IDs in configs
• Documentation – Generate entity lists for wikis or guides

Requirements

• Minecraft 1.20.1
• Forge 47.2.0+
• Client-side installation only

Notes

• The mod only runs on the client side
• File is generated automatically when joining a world
• No configuration needed – it just works!
• Safe to remove after generating the JSON file

Perfect for modpack creators, server administrators, and anyone who needs a complete list of entities in their Minecraft world.