Minecraft 1.21.9 Server Jar
Minecraft 1.21.9 was released by Mojang on 30 Sep 2025 and its server requires Java 21 or newer. 9 server software builds for 1.21.9 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 11e54c2081420a4d49db3007e66c80a22579ff2a.
| Software | Build | Build date | Plugins / mods | Source |
|---|---|---|---|---|
| Vanilla 1.21.9 | — | 30 Sep 2025 | none (data packs) | official |
| Paper 1.21.9 | #59 experimental | 7 Oct 2025 | Bukkit/Paper plugins | official |
| Spigot 1.21.9 | #4540 | 7 Oct 2025 | Bukkit plugins | mirror |
| Purpur 1.21.9 | #2505 | 7 Oct 2025 | Bukkit/Paper plugins | official |
| Fabric 1.21.9 | — | — | Fabric mods | official |
| Quilt 1.21.9 | — | — | Quilt/Fabric mods | official |
| Forge 1.21.9 | 59.0.5 | 6 Oct 2025 | Forge mods | official |
| NeoForge 1.21.9 | 21.9.16-beta experimental | 7 Oct 2025 | NeoForge mods | official |
| SpongeVanilla 1.21.9 | 1.21.9-17.0.0-RC2374 | 30 Sep 2025 | Sponge plugins | official |
Which 1.21.9 server should I use?
- Vanilla — the unmodified game from Mojang.
- Plugins — Paper 1.21.9 or Purpur 1.21.9.
- Mods — the loader your mods target: Fabric, NeoForge, Forge, Quilt.