How to decompile minecraft

Before the 1.21.11 it was obviouscated code so mapping was needed, but this servers target is >=1.21.11 this documentation will only help you with these version.

Requirements

Below there is a command for 1.21.11 and for 26.1 snapshot 3 but you can use any version with it. Use the minecraft launcher (also Prism, etc) create an instance with your target version, next start it this will download the jar file. This is located depending on the launcher and OS but then you have the jar file you can run one of the options below.

There are multiple ways

• using update-minecraft-src.sh, our decompile script included on the repo (it uses gitcraft as the third way behind scenes)

• you can use an online decompiled version, there you can send links to files to other people. The site is: mcsrc.dev you can use [https://mcsrc.dev/#1/1.21.11_unobfuscated] as an alternative

• view the minecraft source code you can do is clone gitcraft, and run ./gradlew run --args="--only-stable --min-version=1.21.11 --only-unobfuscated" it will create minecraft-repo-mojmap-unobfuscated-min-1.21.11-stable/minecraft with all source code

• or you can download the vinflower.jar and then run this command java -jar vineflower-1.11.2.jar ./minecraft-26.1-snapshot-3-client.jar --folder minecraft_26.1. That will create a folder named minecraft_26.1

Other useful resources

• videos on YouTube which will give you also a good tutorial