play.lksmp.funJavaVeloFlame 1.21.4-26.1.1Survival
6 / 100 players
Minecraft 1.21 Servers
Looking for a server that runs Minecraft 1.21? ServerBuddy tracks 163 multiplayer worlds on the 1.21 release line, each one verified against a live server-list ping. Sort by players, uptime or recent activity to find an active 1.21 server, then copy the IP and connect with a matching client - joining with the right version avoids the "outdated client" error.
Showing 85–96 of 163 servers
play.hallowedfantasy.comJava1.21.1Modded
13 / 100 players
Element Animation
Onlineserver.elementanimation.comJavaElement Animation 1.21.11Survival
10 / 60 players
Cobblemon Eclipse
Onlineplay.cobblemoneclipse.comJavaVelocity 1.7.2-1.21.11Modded
10 / 251 players
JustLifesteal
Onlinejustanarchy.orgJavaPaper 1.21.11Lifesteal
7 / 100 players
BlockeMon
Onlineplay.blockemon.ggJava1.21.1Modded
9 / 80 players
AltTD
Onlineplay.alttd.comJavaCosmos 1.21.8Survival
9 / 100 players
Kaboom
Onlinekaboom.pwJavaPaper 1.21.11Creative
7 online
TriverseMC PikaNova
Onlinenova.triversemc.netJavaVelocity 1.7.2-1.21.11Pixelmon
7 / 500 players
Ice and Fire
Online50.115.8.119:24375JavaPaper 1.21.1Roleplay
10 / 100 players
Gapples
Onlinegapples.orgJavaVelocity 1.7.2-1.21.11Anarchy
8 / 1,000 players
OpenRedstone
Onlineopenredstone.orgJavaVelocity 1.7.2-1.21.8Creative
6 / 500 players
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Good to know
Minecraft 1.21 Servers FAQ
Common questions about finding and joining servers in this collection.
How do I join a Minecraft 1.21 server?
Set your Minecraft launcher to a 1.21 profile, copy a server IP from the list above, then add it under Multiplayer. Matching your client to the 1.21 release line prevents version-mismatch errors when you connect.
Do 1.21 servers work with newer Minecraft clients?
Many 1.21 servers run cross-version proxies that accept a range of client versions, but the safest approach is to use a 1.21 profile. Each ServerBuddy card shows the exact version a server reports so you can check before joining.
Why should I pick a server on the 1.21 line?
The 1.21 line groups every patch in that release family, so it is the best way to find worlds that match the features and mods you want. ServerBuddy counts 163 servers on this line, ranked by genuine activity.