Unbreakable Library
by AvatarKage
Unbreakable Library lets server owners make chosen items unbreakable through tags in a datapack, without a mod installed on each player's client.
What it does
Items listed under a tag are marked unbreakable by the datapack library, so their durability never runs out. The library is tag-driven, meaning the set of protected items is chosen by editing tags rather than by code. Version 1.21 and later use an updated tag format.
The server must run the mod, while players may add it but do not need to, so they can join without installing anything. An example pack shows how a diamond, netherite or mace set can be made unbreakable, and it can be installed alongside the library to test the setup. The project is published for Fabric, Forge, NeoForge and Quilt, and the datapack runs on the server.
Key features
Tag-driven protection
Items are made unbreakable by adding them to a tag, so the list of protected items stays in data files.
Datapack library
The library is distributed as a datapack, so it can be used on servers running several loaders.
Example pack
An optional example pack makes diamond, netherite and mace gear unbreakable, showing the tag setup in use.
Compatibility
Latest build for each game version and loader.
26.x4 of 4 versions with builds
1.21.x12 of 12 versions with builds
1.20.x1 of 1 version with builds
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Unbreakable Netherite is a Fabric mod for 1.21.11 that only the server needs, released under CC0 1.0 Universal and not open source. Truly Unbreakable is a Fabric mod for 1.21.4 – 1.21.7 that only the server needs, under All rights reserved and not open source. Unbreakable Library covers a much wider range of loaders and versions.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Unbreakable Library | Fabric, Forge, NeoForge and Quilt | 1.20.1 – 26.2 | Server required, client optional | 2026-08-07 |
| Unbreakable Netherite | Fabric | 1.21.11 | Server-side only | 2026-01-05 |
| Truly Unbreakable | Fabric | 1.21.4 – 1.21.7 | Server-side only | 2025-07-21 |
Questions
Does Unbreakable Library need to be installed on clients?
In the catalog
Unbreakable Library is one of 3,514 Library mods on ModsFinder, and one of 2,348 Library mods for Fabric. 13,894 mods support Minecraft 26.2.
More from AvatarKage
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What the author says
A tag-driven datapack library (1.21+) that makes tagged items truly unbreakable. This pack does nothing on its own. Install this example pack along-side it for something to happen. The example pack makes diamond and netherite gear, and the mace unbreakable.
Official listing
- Modrinth page
- modrinth.com/mod/unbreakable-library
- Owner
- AvatarKage
- Published
- 2025-05-17
- Updated on Modrinth
- 2026-08-07
- Facts verified
- 2026-10-15
