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RFTools BaseMinecraft mod for 1.21.1

RFTools Base: base mod for all McJty tech mods

newest supported release 1.21.1Technology Item Fluid Energy TransportTechnology Energy
Latest version
RFToolsBase - 26.3-9.0.1
Minecraft
1.14.3 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
not stated
Downloads
81.9M
Updated
22 h ago
Available on
CurseForge

Minecraft versions

Every version RFTools Base declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.19.4Forge, NeoForge17+declared14 Mar 2023
1.19.3Forge, NeoForge17+declared7 Dec 2022
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.19.1NeoForge, Forge17+declared27 Jul 2022
1.19NeoForge, Forge17+declared7 Jun 2022
1.18.2NeoForge, Forge17+declared28 Feb 2022
1.18.1NeoForge, Forge17+declared10 Dec 2021
1.16.5NeoForge, Forge8+declared14 Jan 2021
1.16.4NeoForge, Forge8+declared29 Oct 2020
1.16.3NeoForge, Forge8+declared10 Sept 2020
1.16.2NeoForge, Forge8+declared11 Aug 2020
1.15.2NeoForge, Forge8+declared17 Jan 2020
1.14.4NeoForge, Forge8+declared19 Jul 2019
1.14.3Forge, NeoForge8+declared24 Jun 2019

Download

From RFTools Base’s own host. Nothing is re-hosted here.

Browse 52 indexed releases

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • NeoForge

    RFToolsBase - 1.21-6.0.11 · 16 Jun 2026 · rftoolsbase-1.21-6.0.11.jar

    Get NeoForge

Most recently published release

RFToolsBase - 26.3-9.0.1beta29 Oct 2026

rftoolsbase-26.3-9.0.1.jar · 0.5 MB · for 26.3 · NeoForge

Download this release
890fe0cdfb60…
Older versions24
  • RFToolsBase - 26.3-9.0.1-fabric29 Oct 202626.30.5 MB072da73d6203…Get
  • RFToolsBase - 26.2-8.0.129 Oct 202626.20.5 MB81099e7f98a0…Get
  • RFToolsBase - 26.2-8.0.1-fabric29 Oct 202626.20.5 MB3892410256c5…Get
  • RFToolsBase - 26.1.2-7.0.129 Oct 202626.1.20.5 MBc58d3671b628…Get
  • RFToolsBase - 26.1.2-7.0.1-fabric29 Oct 202626.1.20.5 MB8860f6ae9b79…Get
  • RFToolsBase - 26.3-9.0.0-fabric26 Oct 202626.30.5 MBde828957d730…Get
  • RFToolsBase - 26.3-9.0.026 Oct 202626.30.5 MB77289c3958d5…Get
  • RFToolsBase - 26.2-8.0.0-fabric25 Oct 202626.20.5 MBb00f340492b0…Get
  • RFToolsBase - 26.2-8.0.025 Oct 202626.20.5 MBfa6cda58dddb…Get
  • RFToolsBase - 26.1.2-7.0.0-fabric25 Oct 202626.1.20.5 MBb7e20bfb4bb1…Get
  • RFToolsBase - 26.1.2-7.0.025 Oct 202626.1.20.5 MBcea7e0501639…Get
  • RFToolsBase - 1.21-6.0.1116 Jun 20261.21.10.4 MB9614bdc12d6c…Get
  • RFToolsBase - 1.20-5.0.716 Jun 20261.20.10.4 MB1.4k downloads57e1474cb437…Get
  • RFToolsBase - 1.21-6.0.1026 Nov 20251.21.10.4 MB5c801c592a97…Get
  • RFToolsBase - 1.21-6.0.96 Nov 20251.21.10.4 MB33e2af72c9f0…Get
  • RFToolsBase - 1.21-6.0.813 Jul 20251.21.10.4 MBc45bb206e475…Get
  • RFToolsBase - 1.21-6.0.729 Mar 20251.21.10.4 MB1.0M downloads1a24225fd79f…Get
  • RFToolsBase - 1.21-6.0.616 Mar 20251.21.10.4 MB336.5k downloadsa0e25803ffde…Get
  • RFToolsBase - 1.20-5.0.615 Feb 20251.20.10.4 MB2.7M downloads255c0ab024a5…Get
  • RFToolsBase - 1.21-6.0.52 Feb 20251.21.10.4 MB893.9k downloadsdfba581dec23…Get
  • RFToolsBase - 1.21-6.0.418 Dec 20241.21.10.4 MB1.4k downloads512969273126…Get
  • RFToolsBase - 1.21-6.0.310 Dec 20241.21.10.4 MB1.0M downloadsccc9aa6a9eac…Get
  • RFToolsBase - 1.21-6.0.24 Dec 20241.21.10.4 MB122.0k downloads1227e13f3910…Get
  • RFToolsBase - 1.21-6.0.122 Oct 20241.21.10.4 MB560.0k downloads9c80f7377bb3…Get

Frequently asked

Does RFTools Base work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version RFTools Base 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 RFTools Base support?

Everything the author has declared, from 1.14.3 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 RFTools Base support?

NeoForge, 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 RFTools Base?

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 RFTools Base?

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 RFTools Base 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.

BookshelfAn open source library for other mods!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.

Details from CurseForge, where the author last updated it on 29 Oct 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? .