data pack
Just Boss SwordsMinecraft data pack for 1.21.11
Just a mod that lets you borrow the powers of the different boss
- Latest version
- v1.1.0+1.21.1+mod
- Minecraft
- 1.21 to 1.21.11
- Works with
- NeoForge, Quilt, Forge, Fabric
- Licence
- LicenseRef-All-Rights-Reserved
- Downloads
- 15.3k
- Updated
- 2 d ago
- Available on
- Modrinth
Our hostingHost Just Boss Swords servers
Deploy a server with Just Boss Swords already added to the world, on hardware built for it.
- 1.21.11
- Data pack
- NeoForge
- Quilt
- Forge
- One click install
- Version matched
- Automatic backups
- NVMe SSD
Screenshots
Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.
Minecraft versions
Every version Just Boss Swords declares support for, newest first, with the Java runtime that version needs.
| Minecraft | Through | Java | Evidence | Released |
|---|---|---|---|---|
| 1.21.11 | Data pack, NeoForge, Quilt, Forge, Fabric | 21+ | declared | 9 Dec 2025 |
| 1.21.10 | Fabric, Quilt, NeoForge, Forge, Data pack | 21+ | declared | 7 Oct 2025 |
| 1.21.9 | NeoForge, Quilt, Forge, Fabric, Data pack | 21+ | declared | 30 Sept 2025 |
| 1.21.8 | Data pack, Quilt, NeoForge, Forge, Fabric | 21+ | declared | 17 Jul 2025 |
| 1.21.7 | Forge, Quilt, Data pack, NeoForge, Fabric | 21+ | declared | 30 Jun 2025 |
| 1.21.6 | Forge, Data pack, Fabric, NeoForge, Quilt | 21+ | declared | 17 Jun 2025 |
| 1.21.5 | Data pack, Quilt, NeoForge, Forge, Fabric | 21+ | declared | 25 Mar 2025 |
| 1.21.4 | Fabric, Quilt, NeoForge, Forge, Data pack | 21+ | declared | 3 Dec 2024 |
| 1.21.3 | Fabric, Quilt, NeoForge, Forge, Data pack | 21+ | declared | 23 Oct 2024 |
| 1.21.1 | Fabric, Quilt, NeoForge, Forge, Data pack | 21+ | declared | 8 Aug 2024 |
| 1.21 | Fabric, Quilt, NeoForge, Forge, Data pack | 21+ | declared | 13 Jun 2024 |
Download
From Just Boss Swords’s own host. Nothing is re-hosted here.
just-boss-sword-v1.1.0+1.21.1.jar · 0.1 MB · for 1.21, 1.21.1
2ff011149e21…Older versions9Hide older versions
- v1.1.0+1.21.122 Jun 20251.21, 1.21.10.0 MB261 downloads
35afc123711b…Get - v1.2.0+1.21.5+mod17 Apr 20251.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.90.1 MB9.1k downloads
92e477e2bade…Get - v1.2.0+1.21.517 Apr 20251.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.90.0 MB1.1k downloads
8a80332a75e6…Get - v1.1.1+1.21.5+mod25 Mar 20251.21.50.1 MB195 downloads
4feb5b964cfb…Get - v1.1.1+1.21.525 Mar 20251.21.50.0 MB93 downloads
167e87cfd44c…Get - v1.1.0+1.21.4+mod17 Feb 20251.21.40.1 MB943 downloads
be07942480da…Get - v1.1.0+1.21.417 Feb 20251.21.40.0 MB223 downloads
b2b35ff2ebb5…Get - v1.0.0+1.21.3+mod14 Jan 20251.21.30.1 MB159 downloads
e346d61dda5c…Get - v1.0.0+1.21.311 Dec 20241.21.30.0 MB119 downloads
fd74c6183073…Get
Frequently asked
Does Just Boss Swords work on Minecraft 1.21.11?
Yes. 1.21.11 is the newest Minecraft version Just Boss Swords 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 Just Boss Swords support?
Everything the author has declared, from 1.21 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install Just Boss Swords on the client or the server?
The server only. Players join with an ordinary Minecraft client and install nothing.
What licence is Just Boss Swords under?
LicenseRef-All-Rights-Reserved, 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 Just Boss Swords?
Data packs install per world: put the downloaded file in that world's datapacks folder and run /reload, or add it when creating the world. No loader is involved. On a server, the world folder lives next to the server jar.
Where do I download Just Boss Swords 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? .