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Builders JetpackMinecraft mod for 1.21.1

The ideal jetpack for building. (Requires Fabric)

client and servernewest supported 1.21.1UtilityTransportation
Latest version
1.5.1+1.21.1
Minecraft
1.18.2 to 1.21.1
Java
Java 21+
Loaders
Fabric, Quilt
Licence
CC0-1.0
Downloads
8.2k
Updated
14 mo ago
Available on
Modrinth
Space NodePartner

Host Builders Jetpack servers

One click and Builders Jetpack is installed with the right loader, on hardware built for it.

  • 1.21.1
  • Fabric
  • Quilt
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Builders Jetpack declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric, Quilt21+declared8 Aug 2024
1.21Fabric, Quilt21+declared13 Jun 2024
1.20.1Fabric, Quilt17+declared12 Jun 2023
1.18.2Fabric, Quilt17+declared28 Feb 2022

Download

From Builders Jetpack’s own host. Nothing is re-hosted here.

1.5.1+1.21.1release15 Jun 2025

BuildersJetpack-1.5.1+1.21.1.jar · 0.9 MB · for 1.21.1

Download latest
754697700bbc…
Older versions21
  • 1.5.1+1.20.115 Jun 20251.20.10.9 MB898 downloadsfd804dfd8ccf…Get
  • 1.5.0-1.21.125 Apr 20251.21.10.9 MB333 downloads6b7425c5ba0f…Get
  • 1.5.0-1.20.125 Apr 20251.20.10.9 MB173 downloads9f35d88d8e8a…Get
  • 1.4.9-1.21.13 Jan 20251.21.10.5 MB554 downloads3ed43e098276…Get
  • 1.4.9-1.20.13 Jan 20251.20.10.7 MB832 downloads1d6e204fa527…Get
  • 1.4.817 Oct 20241.21.10.5 MB371 downloads93bb1d500507…Get
  • 1.4.716 Oct 20241.21.10.9 MB66 downloads0c7190bf55fa…Get
  • 1.4.615 Oct 20241.21.10.9 MB81 downloadsb7dd7341c81e…Get
  • 1.4.56 Oct 20241.210.7 MB885 downloads9336f87e57f0…Get
  • 1.4.412 Jul 20241.210.7 MB561 downloads44733921ec75…Get
  • 1.4.311 Jul 20241.20.10.7 MB825 downloads27eb9466d99c…Get
  • 1.4.228 Feb 20241.18.20.7 MB175 downloads0ed439332ef2…Get
  • 1.4.111 Feb 20241.18.20.7 MB92 downloads73978fc8750c…Get
  • 1.43 Feb 20241.18.20.7 MB94 downloadsff7541c049cf…Get
  • 1.3.026 Jan 20241.18.20.7 MB84 downloads7dfecc0bf716…Get
  • 1.2.219 Jan 20241.18.20.7 MB95 downloads1ce01b9d1411…Get
  • 1.2.113 Jan 20241.18.20.7 MB119 downloads6354900ad6a5…Get
  • 1.213 Jan 20241.18.20.5 MB98 downloads1807c8a88c71…Get
  • 1.1.19 Jan 20241.18.20.5 MB94 downloads4fb04cdcb0d6…Get
  • 1.19 Jan 20241.18.20.5 MB84 downloads32ca88af5df2…Get
  • 1.09 Jan 20241.18.20.2 MB95 downloadsac02c1c28ac5…Get

Frequently asked

Does Builders Jetpack work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Builders Jetpack 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 Builders Jetpack support?

Everything the author has declared, from 1.18.2 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 Builders Jetpack on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which loader does Builders Jetpack need?

Fabric, Quilt. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Builders Jetpack?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the mod itself.

What licence is Builders Jetpack under?

CC0-1.0, 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 Builders Jetpack?

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 Builders Jetpack safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

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

Entity CullingUsing async path-tracing to hide Block-/Entities that are not visibleFerriteCoreMemory usage optimizationsImmediatelyFastSpeed up immediate mode rendering in MinecraftYetAnotherConfigLib (YACL)A builder-based configuration library for Minecraft!Xaero's MinimapDisplays a map of the nearby world terrain, players, mobs, entities in the corner of your screen. Lets you create waypoints which help you find the locations you've marked.[ETF] Entity Texture FeaturesEmissive, Random & Custom texture support for entities in resourcepacks just like Optifine but for Fabric

Last checked 6 d 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? .