Download Paper 1.21.6 Server
The Paper server JAR for Minecraft 1.21.6, direct from the official source. Build details, release date and Java requirements below.
Java required
Java 21
Released
Jun 30, 2025
Build
48
File size
50 MB
Channel
Stable
SHA-1 checksum
35e2dfa66b3491b9d2f0bb033679fa5aca1e1fdf097e7a06a80ce8afeda5c214
Setup
Start script (Linux/macOS)
java -Xms4G -Xmx4G --add-modules=jdk.incubator.vector -XX:+UseG1GC -jar paper.jar noguiStart script (Windows)
java -Xms4G -Xmx4G --add-modules=jdk.incubator.vector -XX:+UseG1GC -jar paper.jar --nogui
pauseOther Minecraft 1.21 builds of Paper
Other builds in the 1.21.x line. The newest stable is selected by default above.