A Small Tool to Extract All Vanilla Advancements from Minecraft
June 14, 2026 | Upload your advancement folder and generate a complete advancements JSON for your datapack.
You should first find your game's jar file, like 26.1.2.jar. Then open the jar with 7-Zip or other similar file archiver app and extract the data/minecraft/advancement folder. Another way is to rename the jar file and change its prefix from .jar to .zip and unzip it.
Find the advancement folder. in my case its path is 26.1.2.jar/data/minecraft/advancement.
Upload the advancement folder extracted from your Minecraft jar file. This tool will recursively find all advancement JSON files and generate a JSON that you can use in a datapack.
Advancements whose path starts with any of these prefixes (one per line) will be excluded.