Minecraft 1.21.1 Server Jar
Minecraft 1.21.1 was released by Mojang on 8 Aug 2024 and its server requires Java 21 or newer. 15 server software builds for 1.21.1 are listed below — pick vanilla for the pure game, Paper for plugins, or a mod loader for mods.
The official vanilla server.jar has SHA-1 59353fb40c36d304f2035d51e7d6e6baa98dc05c.
| Software | Build | Build date | Plugins / mods | Source |
|---|---|---|---|---|
| Vanilla 1.21.1 | — | 8 Aug 2024 | none (data packs) | official |
| Paper 1.21.1 | #133 | 28 Mar 2025 | Bukkit/Paper plugins | official |
| Spigot 1.21.1 | #4344 | 22 Oct 2024 | Bukkit plugins | mirror |
| CraftBukkit 1.21.1 | — | — | Bukkit plugins | mirror |
| Purpur 1.21.1 | #2329 | 31 Oct 2024 | Bukkit/Paper plugins | official |
| Pufferfish 1.21.1 | #21 | 22 Oct 2024 | Bukkit/Paper plugins | mirror |
| Leaves 1.21.1 | #81 | 16 Nov 2024 | Bukkit/Paper plugins | mirror |
| Leaf 1.21.1 | — | 4 Jun 2025 | Bukkit/Paper plugins | official |
| Fabric 1.21.1 | — | — | Fabric mods | official |
| Quilt 1.21.1 | — | — | Quilt/Fabric mods | official |
| Forge 1.21.1 | 52.1.20 | 15 Oct 2026 | Forge mods | official |
| NeoForge 1.21.1 | 21.1.265 | 25 Oct 2026 | NeoForge mods | official |
| SpongeVanilla 1.21.1 | 1.21.1-12.0.4-RC2569 | 8 Aug 2024 | Sponge plugins | official |
| Arclight 1.21.1 | 1.0.2-SNAPSHOT-a3e2991-ne… | 25 Oct 2026 | mods + plugins | mirror |
| Magma 1.21.1 | 21.1.70-beta | 8 Aug 2024 | mods + plugins | mirror |
Which 1.21.1 server should I use?
- Vanilla — the unmodified game from Mojang.
- Plugins — Paper 1.21.1 or Purpur 1.21.1.
- Mods — the loader your mods target: Fabric, NeoForge, Forge, Quilt.
- Mods + plugins — a hybrid: Arclight, Magma.