Magma for Minecraft 1.21.1
51 builds of Magma published for Minecraft 1.21.1, newest first. Every download links to the project’s own release.
- Latest build
- #51
- Java required
- Java 21 or newer
- Builds
- 51
- Newest published
- 28 Jul 2026
Magma builds for 1.21.1
Newest first. The checksum is the project's own, where it publishes one.
| Build | Channel | Published | Size | Download |
|---|---|---|---|---|
| #51 | beta | 28 Jul 2026 | 129.4 MB | server.jar.zip |
| #50 | beta | 28 Jul 2026 | 129.3 MB | server.jar.zip |
| #49 | beta | 28 Jul 2026 | 129.3 MB | server.jar.zip |
| #48 | beta | 28 Jul 2026 | 129.3 MB | server.jar.zip |
| #47 | beta | 28 Jul 2026 | 129.3 MB | server.jar.zip |
| #46 | beta | 28 Jul 2026 | 129.3 MB | server.jar.zip |
| #45 | beta | 28 Jul 2026 | 129.3 MB | server.jar.zip |
| #44 | beta | 28 Jul 2026 | 129.3 MB | server.jar.zip |
| #43 | beta | 28 Jul 2026 | 128.1 MB | server.jar.zip |
| #42 | beta | 28 Jul 2026 | 128.1 MB | server.jar.zip |
| #41 | beta | 28 Jul 2026 | 128.1 MB | server.jar.zip |
| #40 | beta | 28 Jul 2026 | 128.1 MB | server.jar.zip |
| #39 | beta | 28 Jul 2026 | 128.1 MB | server.jar.zip |
| #38 | beta | 28 Jul 2026 | 128.1 MB | server.jar.zip |
| #37 | beta | 28 Jul 2026 | 128.1 MB | server.jar.zip |
| #36 | beta | 28 Jul 2026 | 128.1 MB | server.jar.zip |
| #35 | beta | 28 Jul 2026 | 128.1 MB | server.jar.zip |
| #34 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #33 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #32 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #31 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #30 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #29 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #28 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #27 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #26 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #25 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #24 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #23 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #22 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #21 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #20 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #19 | beta | 28 Jul 2026 | 127.6 MB | server.jar.zip |
| #18 | beta | 28 Jul 2026 | 127.3 MB | server.jar.zip |
| #17 | beta | 28 Jul 2026 | 131.4 MB | server.jar.zip |
| #16 | beta | 28 Jul 2026 | 131.4 MB | server.jar.zip |
| #15 | beta | 28 Jul 2026 | 131.4 MB | server.jar.zip |
| #14 | beta | 28 Jul 2026 | 131.4 MB | server.jar.zip |
| #13 | beta | 28 Jul 2026 | 131.4 MB | server.jar.zip |
| #12 | beta | 28 Jul 2026 | 131.4 MB | server.jar.zip |
| #11 | beta | 28 Jul 2026 | 131.3 MB | server.jar.zip |
| #10 | beta | 28 Jul 2026 | 131.3 MB | server.jar.zip |
| #9 | beta | 28 Jul 2026 | 131.3 MB | server.jar.zip |
| #8 | beta | 28 Jul 2026 | 131.1 MB | server.jar.zip |
| #7 | beta | 28 Jul 2026 | 130.9 MB | server.jar.zip |
| #6 | beta | 28 Jul 2026 | 130.8 MB | server.jar.zip |
| #5 | beta | 28 Jul 2026 | 130.8 MB | server.jar.zip |
| #4 | beta | 28 Jul 2026 | 130.7 MB | server.jar.zip |
| #3 | beta | 28 Jul 2026 | 130.5 MB | server.jar.zip |
| #2 | beta | 28 Jul 2026 | 130.5 MB | server.jar.zip |
| #1 | beta | 27 Jul 2026 | 130.5 MB | server.jar.zip |
Magma on 1.21.1: common questions
Does Magma support Minecraft 1.21.1?
Yes. 51 builds have been published for 1.21.1, the newest being build 51. This is not a declared claim: each build below is a real file the project released for this version.
Which Java version do I need for Magma 1.21.1?
Java 21 or newer. The requirement comes from Minecraft 1.21.1 itself rather than from Magma, so it applies to any server software running this version. A newer Java than that is fine.
Which Magma build should I run on 1.21.1?
The newest one, build 51, published 4 h ago. Later builds for the same Minecraft version are bug fixes and performance work, so there is rarely a reason to run an older one deliberately.
Is this download official?
Yes. Every link points at Magma's own release or API. MCReference does not mirror, re-host or repackage a jar; where the project publishes a SHA-256 we show it so you can verify the file you got.