mod
AltXMinecraft mod for 26.3
AltX is a lightweight serverside mod for minecraft fabric that logs player IP addresses & detects alternate accounts or shared IPs.
- Latest version
- 1.6.0
- Minecraft
- 1.21.1 to 26.3
- Java
- Java 25+
- Loader
- Fabric
- Licence
- GPL-3.0-or-later
- Downloads
- 1.6k
- Updated
- 1 mo ago
- Available on
- Modrinth
Our hostingHost AltX servers
One click and AltX is installed with the right loader, on hardware built for it.
- 26.3
- Fabric
- One click mod install
- Loader matched for you
- Ryzen CPUs
- NVMe SSD
Screenshots
Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.
Minecraft versions
Every version AltX declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 26.3 | Fabric | 25+ | declared | 15 Sept 2026 |
| 26.2 | Fabric | 25+ | declared | 16 Jun 2026 |
| 26.1.2 | Fabric | 25+ | declared | 9 Apr 2026 |
| 26.1.1 | Fabric | 25+ | declared | 1 Apr 2026 |
| 26.1 | Fabric | 25+ | declared | 24 Mar 2026 |
| 1.21.11 | Fabric | 21+ | declared | 9 Dec 2025 |
| 1.21.10 | Fabric | 21+ | declared | 7 Oct 2025 |
| 1.21.9 | Fabric | 21+ | declared | 30 Sept 2025 |
| 1.21.8 | Fabric | 21+ | declared | 17 Jul 2025 |
| 1.21.7 | Fabric | 21+ | declared | 30 Jun 2025 |
| 1.21.6 | Fabric | 21+ | declared | 17 Jun 2025 |
| 1.21.5 | Fabric | 21+ | declared | 25 Mar 2025 |
| 1.21.4 | Fabric | 21+ | declared | 3 Dec 2024 |
| 1.21.1 | Fabric | 21+ | declared | 8 Aug 2024 |
Download
From AltX’s own host. Nothing is re-hosted here.
Most recently published release
AltX-fabric-1.6.0.jar · 56 KB · for 26.3 · Fabric
a2dae9c2e6c9…Older versions7Hide older versions
- 1.5.018 Jun 202626.252 KB242 downloads
834341c864a6…Get - 1.4.010 Dec 20251.21.113.0 MB146 downloads
071d4f83d648…Get - 1.3.021 Jun 20251.21.7, 1.21.648 KB146 downloads
abe77f6036b3…Get - 1.2.18 Mar 20251.21.147 KB147 downloads
c2bce784de67…Get - 1.2.029 Jan 20251.21.448 KB58 downloads
1a911999aefc…Get - 1.1.013 Jan 20251.21.442 KB59 downloads
c9501583adfd…Get - 1.0.08 Jan 20251.21.429 KB54 downloads
435f799a2557…Get
Frequently asked
Does AltX work on Minecraft 26.3?
Yes. 26.3 is the newest Minecraft version AltX declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.
Which Minecraft versions does AltX support?
Everything the author has declared, from 1.21.1 up to 26.3. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install AltX on the client or the server?
The server only. Players join with an ordinary Minecraft client and install nothing.
Which platform or loader does AltX support?
Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.
Which Java version do I need for AltX?
Among the supported Minecraft releases above, the highest recorded requirement is Java 25 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.
What licence is AltX under?
GPL-3.0-or-later, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.
How do I install AltX?
Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.
Where do I download AltX safely?
Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.
Works on the same versions
Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.
Is this information wrong or missing something? .