mod
Missing Mods CheckerMinecraft mod for 1.21.1
Ensures the user always has core mods for the modpack, and allows prompting them to download optional mods on startup
- Latest version
- fabric-1.21.1-1.0.1
- Minecraft
- 1.20 to 1.21.1
- Java
- Java 21+
- Loaders
- NeoForge, Fabric, Forge
- Licence
- LicenseRef-Tonis-MMC-License
- Downloads
- 47.2k
- Updated
- 8 mo ago
- Available on
- Modrinth
Minecraft versions
Every version Missing Mods Checker declares support for, newest first, with the Java runtime that version needs.
Download
From Missing Mods Checker’s own host. Nothing is re-hosted here.
For Minecraft 1.21.1
Choose the loader you use before downloading.
- Get Fabric
Fabric
fabric-1.21.1-1.0.1 · 28 Feb 2026 · missingmodschecker-fabric-1.0.1-1.21.1.jar
- Get NeoForge
NeoForge
neoforge-1.21.1-1.0.1 · 28 Feb 2026 · missingmodschecker-neoforge-1.0.1-1.21.1.jar
Most recently published release
missingmodschecker-fabric-1.0.1-1.21.1.jar · 1.0 MB · for 1.21.1 · Fabric
f3ccf9cf1407…Older versions7Hide older versions
- fabric-1.20.1-1.0.128 Feb 20261.20.1, 1.200.7 MB190 downloads
fc5b57c257ae…Get - forge-1.20.1-1.0.128 Feb 20261.20.1, 1.200.4 MB48.5k downloads
49c6a5bbc68b…Get - neoforge-1.21.1-1.0.128 Feb 20261.21.10.4 MB2.2k downloads
6340e99dfd50…Get - fabric-1.20.1-1.0.017 Feb 20261.20.1, 1.200.7 MB33 downloads
2c12d943a626…Get - fabric-1.21.1-1.0.017 Feb 20261.21.11.0 MB39 downloads
ed930d0a4b0d…Get - forge-1.20.1-1.0.017 Feb 20261.20.1, 1.200.4 MB153 downloads
a9488b5e1581…Get - neoforge-1.21.1-1.0.017 Feb 20261.21.10.4 MB48 downloads
bf5ea2389b3e…Get
Frequently asked
Does Missing Mods Checker work on Minecraft 1.21.1?
Yes. 1.21.1 is the newest Minecraft version Missing Mods Checker 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 Missing Mods Checker support?
Everything the author has declared, from 1.20 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install Missing Mods Checker on the client or the server?
The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.
Which platform or loader does Missing Mods Checker support?
NeoForge, Fabric, Forge. 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 Missing Mods Checker?
Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.
What licence is Missing Mods Checker under?
LicenseRef-Tonis-MMC-License, 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 Missing Mods Checker?
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 Missing Mods Checker 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? .