Download Paper 1.21.11 Server
The Paper server JAR for Minecraft 1.21.11, direct from the official source. Build details, release date and Java requirements below.
Java required
Java 21
Released
Apr 11, 2026
Build
130
File size
52 MB
Channel
Stable
SHA-1 checksum
25eb85bd8415195ce4bc188e1939e0c7cef77fb51d26d4e766407ee922561097
⚡ Experimental build available
An experimental build is available for this Minecraft version. Use it only if you understand it has not been promoted to stable yet. Build 69
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.