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FoolproofMinecraft mod for 1.21.1

Utility for modpack devs that fixes commonly reported areas of user confusion

newest supported release 1.21.1Utility QolServer UtilityCosmeticLibrary Api
Latest version
Foolproof Fabric 1.0.4 for 1.20.1
Minecraft
1.20 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Fabric, Forge
Licence
not stated
Downloads
7.2M
Updated
5 mo ago
Available on
CurseForge

Minecraft versions

Every version Foolproof 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 Foolproof’s own host. Nothing is re-hosted here.

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • NeoForge

    Foolproof Neoforge 1.0.4 for 1.21.1 · 23 Sept 2025 · foolproof-neoforge-1.0.4-1.21.1.jar

    Get NeoForge

  • Fabric

    Foolproof Fabric 1.0.4 for 1.21.1 · 23 Sept 2025 · foolproof-fabric-1.0.4-1.21.1.jar

    Get Fabric

Most recently published release

Foolproof Fabric 1.0.4 for 1.20.1release23 Sept 2025

foolproof-fabric-1.0.4-1.20.1.jar · 0.8 MB · for 1.20.1, 1.20 · Fabric

Download this release
a00511ed6e1f…
Older versions19
  • Foolproof Forge 1.0.4 for 1.20.123 Sept 20251.20.1, 1.200.6 MBa20b213fe0f3…Get
  • Foolproof Neoforge 1.0.4 for 1.21.123 Sept 20251.21.10.4 MB46f8e2d900e4…Get
  • Foolproof Fabric 1.0.4 for 1.21.123 Sept 20251.21.11.0 MB89b0c1e2864b…Get
  • Foolproof Fabric 1.0.3 for 1.21.118 Sept 20251.21.11.0 MB03f68d035708…Get
  • Foolproof Neoforge 1.0.3 for 1.21.118 Sept 20251.21.10.4 MB944ba39ea5f1…Get
  • Foolproof Forge 1.0.3 for 1.20.118 Sept 20251.20.1, 1.200.6 MB19b750f7c5c7…Get
  • Foolproof Fabric 1.0.3 for 1.20.118 Sept 20251.20.1, 1.200.8 MBd83c9ed56312…Get
  • Foolproof Fabric 1.0.2 for 1.21.117 Sept 20251.21.11.0 MB48822405856d…Get
  • Foolproof Neoforge 1.0.2 for 1.21.117 Sept 20251.21.10.4 MB592918be5fe1…Get
  • Foolproof Forge 1.0.2 for 1.20.117 Sept 20251.20.1, 1.200.6 MB06d8fb56d1dc…Get
  • Foolproof Fabric 1.0.2 for 1.20.117 Sept 20251.20.1, 1.200.8 MB9207db4d263c…Get
  • Foolproof Fabric 1.0.1 for 1.21.123 Aug 20251.21.11.0 MBed979a9d6e11…Get
  • Foolproof Forge 1.0.1 for 1.20.123 Aug 20251.20.1, 1.200.6 MB1 download7c6e49a9c6b0…Get
  • Foolproof Fabric 1.0.1 for 1.20.123 Aug 20251.20.1, 1.200.8 MB1 downloadd0a615eeeda8…Get
  • Foolproof Neoforge 1.0.1 for 1.21.123 Aug 20251.21.10.4 MB1 downloade0ef66ddd5c0…Get
  • Foolproof Fabric 1.0.0 for 1.20.122 Aug 20251.20.1, 1.200.8 MB1 downloada75fa2d8a876…Get
  • Foolproof Fabric 1.0.0 for 1.21.122 Aug 20251.21.11.0 MB1 download436a67f3a328…Get
  • Foolproof Neoforge 1.0.0 for 1.21.122 Aug 20251.21.10.4 MB1 downloade65a11470940…Get
  • Foolproof Forge 1.0.0 for 1.20.122 Aug 20251.20.1, 1.200.6 MB1 download0f30beb67067…Get

Frequently asked

Does Foolproof work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Foolproof 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 Foolproof 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.

Which platform or loader does Foolproof 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 Foolproof?

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.

How do I install Foolproof?

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 Foolproof safely?

Start with the author's page on CurseForge, 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.

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Details from CurseForge, where the author last updated it on 17 Jun 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .