mod
BlueLibMinecraft mod for 1.21.5
BlueLib is a Minecraft modding library designed to handle a wide range of modding tasks. It includes systems for simplifying code development, with support for data packs and resource packs. The goal is to make modding more accessible!
- Latest version
- neoforge-2.4.3
- Minecraft
- 1.21 to 1.21.5
- Java
- Java 21+
- Loaders
- NeoForge, Fabric
- Licence
- MIT
- Downloads
- 17.9k
- Updated
- 7 mo ago
- Available on
- Modrinth
PartnerHost BlueLib servers
One click and BlueLib is installed with the right loader, on hardware built for it.
- 1.21.5
- NeoForge
- Fabric
- One click mod install
- Loader matched for you
- Ryzen CPUs
- NVMe SSD
Minecraft versions
Every version BlueLib declares support for, newest first, with the Java runtime that version needs.
2.4.3-neoforge-1.21.1-bluelib-2.4.3.jar · 1.0 MB · for 1.21.1, 1.21.2, 1.21.3
59a29756b4d6…Older versions24Hide older versions
- fabric-2.4.34 Jan 20261.21.1, 1.21.2, 1.21.31.0 MB5.5k downloads
eac0b5700fad…Get - neoforge-2.4.230 Dec 20251.21.1, 1.21.2, 1.21.31.0 MB111 downloads
7a5b73b2465d…Get - fabric-2.4.230 Dec 20251.21.1, 1.21.2, 1.21.31.0 MB199 downloads
51a46ae7a126…Get - neoforge-2.4.130 Dec 20251.21.1, 1.21.2, 1.21.31.0 MB36 downloads
979d7fc63f28…Get - fabric-2.4.130 Dec 20251.21.1, 1.21.2, 1.21.31.0 MB60 downloads
1e107bf63ee0…Get - fabric-2.4.028 Nov 20251.21.1, 1.21.2, 1.21.31.0 MB645 downloads
521edcc200c7…Get - neoforge-2.4.028 Nov 20251.21.1, 1.21.2, 1.21.31.0 MB351 downloads
cfc9092da5a6…Get - fabric-2.3.823 Sept 20251.21.1, 1.21.2, 1.21.31.0 MB1.1k downloads
4a3d76d47b7a…Get - neoforge-2.3.823 Sept 20251.21.1, 1.21.2, 1.21.31.0 MB635 downloads
db24c6e8e39d…Get - fabric-2.3.711 Sept 20251.21.1, 1.21.2, 1.21.31.0 MB352 downloads
6cab0e4c081d…Get - neoforge-2.3.711 Sept 20251.21.1, 1.21.2, 1.21.31.0 MB203 downloads
cdea6f219528…Get - fabric-2.3.629 Aug 20251.21.1, 1.21.2, 1.21.31.0 MB253 downloads
8762d3eb17d4…Get - neoforge-2.3.629 Aug 20251.21.1, 1.21.2, 1.21.30.9 MB190 downloads
651a0d71aa3d…Get - fabric-2.3.528 Aug 20251.21.1, 1.21.2, 1.21.31.0 MB62 downloads
656333784723…Get - neoforge-2.3.528 Aug 20251.21.1, 1.21.2, 1.21.30.9 MB63 downloads
05413367ed8c…Get - fabric-2.3.427 Aug 20251.21.1, 1.21.2, 1.21.31.0 MB90 downloads
2d997eecba22…Get - neoforge-2.3.427 Aug 20251.21.1, 1.21.2, 1.21.30.9 MB72 downloads
c94c6afc1644…Get - fabric-2.3.3.626 Aug 20251.21.1, 1.21.2, 1.21.31.0 MB62 downloads
c2b35c7052d0…Get - neoforge-2.3.3.626 Aug 20251.21.1, 1.21.2, 1.21.30.9 MB72 downloads
848103703fca…Get - fabric-2.3.3.525 Aug 20251.21.1, 1.21.2, 1.21.31.0 MB85 downloads
9336c0de82c1…Get - neoforge-2.3.3.525 Aug 20251.21.1, 1.21.2, 1.21.30.9 MB65 downloads
69b09887cb39…Get - fabric-2.3.3.424 Aug 20251.21.1, 1.21.2, 1.21.31.0 MB62 downloads
0f9a2c1c4542…Get - neoforge-2.3.3.424 Aug 20251.21.1, 1.21.2, 1.21.30.9 MB52 downloads
8bac7be6e506…Get - fabric-2.3.3.323 Aug 20251.21.1, 1.21.2, 1.21.31.0 MB43 downloads
2e1aca52b685…Get
Frequently asked
Does BlueLib work on Minecraft 1.21.5?
Yes. 1.21.5 is the newest Minecraft version BlueLib 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 BlueLib support?
Everything the author has declared, from 1.21 up to 1.21.5. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install BlueLib 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 BlueLib need?
NeoForge, Fabric. 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 BlueLib?
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 BlueLib under?
MIT, 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 BlueLib?
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 BlueLib 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.
Is this information wrong or missing something? .