How do I install Just Boss Swords?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does Just Boss Swords work with?

The listing gives Minecraft 1.21.9, 1.21.10, 1.21.11, among others. This is the version stated by the author or source site, not something we verified ourselves.

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Just Boss Swords

Java data pack listed for Minecraft 1.21–26.x. Downloads from the MC Java Mods app on Android.

by JujuCorp · on Modrinth

Just a mod that lets you borrow the powers of the different boss. Free Minecraft Java datapack for 1.21.9, 1.21.10, 1.21.11.

⬇ Download on Modrinth

Open in MC Java Mods Get it on Google Play →

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.9, 1.21.10, 1.21.11
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.

File checked by MCModsHub

Downloads as Just Boss Sword v1.3.1.zip
Download size: 17 KB
Download link checked 8 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

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