CurseForge · Minecraft mod

Unbreakable Key

Make the tool never break with just one button.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Unbreakable Key release should I use?

Updated today

Latest stable file unbreakable_key-1.21.1.jar

Game version 1.21.1

Loader NeoForge

Unbreakable Key unbreakable_key-1.21.1.jar targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.

Where it goes

Is Unbreakable Key required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say

Dedicated server Source doesn’t say

Loader for this release NeoForge

Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does Unbreakable Key unbreakable_key-1.21.1.jar need?

unbreakable_key-1.21.1.jar. Change the file and its required mods may change too.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add Unbreakable Key without breaking your instance.

Built for Unbreakable Key unbreakable_key-1.21.1.jar. Pick another file and the loader, install side or required mods may change.

01
Stick to this file

Use unbreakable_key-1.21.1.jar. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
02
Bring the mods it needs

This file does not list any required mods. Do not add a library just because a different file uses it.
03
Put it on the correct side

The project page does not say whether this file belongs on the client, dedicated server, or both.
04
Pick the file you checked

Use the “Get this file” button beside unbreakable_key-1.21.1.jar. It opens that exact file at the source.

About this project

What does Unbreakable Key add?

Keep your tools from breaking by holding the item in your hand and just pressing a set button.And adding an invulnerable key makes the mount immortal.Version 1.21.1 does not have an invulnerable key.

Project description from CurseForge.

Pick your setup

Unbreakable Key by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

2 available setups

Minecraft version

1.21.1

1 loader build

NeoForge unbreakable_key-1.21.1.jar 1 stable file · 1 total · 13 Nov 2026

Minecraft version

1.20.1

1 loader build

Forge Unbreakable Key-1.20 V.1.5.jar 6 stable files · 6 total · 23 Apr 2026

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files