Minecraft Advancement JSON Generator

Create custom Minecraft advancements for datapacks

Advancement Definition

Namespace

Datapack folder name

File name (no .json)

Title

Description

Icon (item ID)

minecraft:diamond

Frame Type

Announce to chatShow toast popupHidden until earned

Trigger

Item ID

minecraft:diamond

Rewards (optional)

Reward Item (optional)

minecraft:diamond

Item Count

XP Reward

first_diamond.json

{
  "display": {
    "icon": {
      "item": "minecraft:diamond"
    },
    "title": {
      "text": "First Diamond!"
    },
    "description": {
      "text": "Mine your first diamond"
    },
    "frame": "task",
    "show_toast": true,
    "announce_to_chat": true,
    "hidden": false
  },
  "criteria": {
    "condition": {
      "trigger": "minecraft:inventory_changed",
      "conditions": {
        "items": [
          {
            "items": [
              "minecraft:diamond"
            ]
          }
        ]
      }
    }
  },
  "rewards": {
    "experience": 100
  }
}

Installing the Advancement

Create a datapack folder: datapacks/my_advancements/ in your world folder.
Inside, create pack.mcmeta with {pack:{pack_format:48,description:"My Advancements"}}
Create the path: data/myserver/advancements/first_diamond.json
Paste the JSON above and save.
Run /reload in-game. The advancement appears immediately.

Minecraft Advancement JSON Generator — FAQ

Is this Minecraft Advancement JSON Generator free to use?

Yes, the Minecraft Advancement JSON Generator is 100% free — no signup required, no hidden fees, no downloads. Everything runs in your browser.

How accurate is the Minecraft Advancement JSON Generator?

Values are pulled from the Minecraft game files and community-verified formulas. Results match what you see in-game, and we update the tool when the game gets major patches.

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