Attribute Modify
by Etema
Attribute Modify lets server owners change item attributes through datapack files, without writing Java code for each change.
What it does
Attribute Modify edits the attribute modifiers of items, covering both vanilla attributes and those added by other mods. A datapack rule can add, replace, set or remove an attribute modifier, and it can remove one specific operation while leaving the others in place. Mining speed can be overridden while keeping speed multipliers from other sources, and the mod can raise the harvest capability of an item so it meets vanilla or modded mining tier requirements.
Rules can also redefine durability and set custom triggers for it, and they can disable the functional behavior of decorative items without deleting unrelated player effects. Weighted quality data can be rolled during crafting, loot generation and villager trades, and optional support covers Curios and Accessories slots. The mod needs only a datapack for its rules, and it runs on Forge and NeoForge, which both use the same files. Files are published for 1.20.1 and 1.21.1 builds, and rule files must follow the pack format of the Minecraft version in use.
Key features
Attribute modifier editing
Add, replace, set or remove attribute modifiers on items, including ones added by other mods.
Targeted operation removal
Remove one specific modifier operation while all other modifiers on the item stay in place.
Mining and durability overrides
Override mining speed while keeping external multipliers, and define custom durability triggers.
In-game rule generation
An in-game editor and a client command generate datapack rules, which are written into the world's datapack directory.
Gallery
Compatibility
Latest build for each game version and loader.
1.21.x11 of 11 versions with builds
1.20.x6 of 6 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Balancing weapons and curios
Buff or nerf weapons and curio items through datapack rules, without changing the items themselves.
Custom item quality
Roll weighted quality values during crafting, loot generation and villager trades.
Who it’s for: Server owners and modpack authors who want to adjust item attributes, mining tiers and durability through datapacks instead of code.
How it compares
Attribute Base Modifier is open source under the MIT License and runs on Fabric, Forge and NeoForge, with files for 1.20 – 1.21.8 and server-side only environment. Random Attributes is server-side only, covers 1.20.1 – 1.21.1 on Forge and NeoForge, and is not open source. Combat Balance runs on the client and server, uses the MIT License and covers 1.20.1 – 1.21.1 on Forge and NeoForge.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Attribute Modify | Forge and NeoForge | 1.20.1 – 1.21.11 | Client and server | 2026-08-06 |
| Attribute Base Modifier | Fabric, Forge and NeoForge | 1.20 – 1.21.8 | Server-side only | 2025-09-15 |
| Random Attributes | Forge and NeoForge | 1.20.1 – 1.21.1 | Server-side only | 2025-09-21 |
| Combat Balance | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-04-04 |
Questions
Does Attribute Modify need to be installed on both sides?
Which loaders does Attribute Modify support?
Does a rule change take effect immediately?
In the catalog
Attribute Modify is one of 8,016 Management mods on ModsFinder, and one of 2,698 Management mods for Forge. 19,862 mods support Minecraft 1.21.11.
More from Etema
Similar mods
What the author says
Version 1.2.3 | Minecraft 1.20.1 Forge and Minecraft 1.21.1 NeoForge Modify item attributes and related item behavior through datapacks. AttributeModify supports vanilla and modded attributes, mining overrides, durability changes, decorative item profiles, weighted quality data, and optional Curios or Accessories…
Official listing
- Modrinth page
- modrinth.com/mod/attribute-modify
- Owner
- Etema
- Published
- 2025-09-01
- Updated on Modrinth
- 2026-08-06
- Facts verified
- 2026-10-15