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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

client onlynewest supported 1.21.1
Latest version
fabric-1.21.1-1.0.1
Loaders
NeoForge, Fabric, Forge
Licence
LicenseRef-Tonis-MMC-License
Downloads
47.2k
Updated
7 mo ago
Available on
Modrinth

Minecraft versions

Every version Missing Mods Checker declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Fabric, Forge21+declared8 Aug 2024
1.20.1Forge, Fabric, NeoForge17+declared12 Jun 2023
1.20Fabric, NeoForge, Forge17+declared2 Jun 2023

Download

From Missing Mods Checker’s own host. Nothing is re-hosted here.

fabric-1.21.1-1.0.1release28 Feb 2026

missingmodschecker-fabric-1.0.1-1.21.1.jar · 1.0 MB · for 1.21.1

Download latest
f3ccf9cf1407
Older versions7
  • fabric-1.20.1-1.0.128 Feb 20261.20.1, 1.200.7 MB190 downloadsfc5b57c257aeGet
  • forge-1.20.1-1.0.128 Feb 20261.20.1, 1.200.4 MB48.5k downloads49c6a5bbc68bGet
  • neoforge-1.21.1-1.0.128 Feb 20261.21.10.4 MB2.2k downloads6340e99dfd50Get
  • fabric-1.20.1-1.0.017 Feb 20261.20.1, 1.200.7 MB33 downloads2c12d943a626Get
  • fabric-1.21.1-1.0.017 Feb 20261.21.11.0 MB39 downloadsed930d0a4b0dGet
  • forge-1.20.1-1.0.017 Feb 20261.20.1, 1.200.4 MB153 downloadsa9488b5e1581Get
  • neoforge-1.21.1-1.0.017 Feb 20261.21.10.4 MB48 downloadsbf5ea2389b3eGet

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?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

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. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Last checked 2 mo ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .