CurseForge · Minecraft mod
RFTools Builder
RFTools addon mod adding the builder, shield system and much more
Quick answer
Which RFTools Builder release matches 1.21.1 NeoForge?
RFTools Builder RFToolsBuilder - 1.21-7.0.5 targets 1.21.1 with NeoForge. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. All 2 required mods have matching files.
Where it goes
Is RFTools Builder required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
The source does not explicitly classify this release as client-only or server-only.
What else does RFTools Builder RFToolsBuilder - 1.21-7.0.5 need?
RFToolsBuilder - 1.21-7.0.5 on 1.21.1 NeoForge. Every mod below is checked against that same setup.
Install RFTools Base, McJtyLib first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add RFTools Builder without breaking your instance.
Built for RFTools Builder RFToolsBuilder - 1.21-7.0.5 on 1.21.1 NeoForge. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use RFToolsBuilder - 1.21-7.0.5. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install RFTools Base, McJtyLib first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside RFToolsBuilder - 1.21-7.0.5. It opens that exact file at the source.
About this project
What does RFTools Builder add?
RFTools Builder is an addon for RFTools Base which adds the builder (and all the shape cards) and the shield system. This mod is intended to be used together with RFTools Power and depends on RFTools Base and McJtyLib.

Feel free to use this mod in any moidpack
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Project description from CurseForge.
Pick your setup
RFTools Builder by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader build1.20.1
1 loader build1.19.4
1 loader build1.19.3
1 loader build1.19.2
1 loader build1.19.1
1 loader build1.19
1 loader build1.18.2
1 loader build1.16.5
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
RFTools Builder versions and loaders
RFToolsBuilder - 1.21-7.0.5
rftoolsbuilder-1.21-7.0.5.jar
16 Jun 2026
RFToolsBuilder - 1.21-7.0.4
rftoolsbuilder-1.21-7.0.4.jar
2 Dec 2025
RFToolsBuilder - 1.21-7.0.3
rftoolsbuilder-1.21-7.0.3.jar
25 May 2025
RFToolsBuilder - 1.21-7.0.2
rftoolsbuilder-1.21-7.0.2.jar
16 Mar 2025
RFToolsBuilder - 1.21-7.0.1
rftoolsbuilder-1.21-7.0.1.jar
10 Dec 2024
RFToolsBuilder - 1.21-7.0.0
rftoolsbuilder-1.21-7.0.0.jar
4 Dec 2024
Looking for an older file? The official CurseForge project page is in Resources.