Datagear
by WFPhantom
Datagear is a server-side utility library that exposes item components and modifiers so developers can change them through JSON datapack files.
What it does
Datagear lets developers manage item components through data, including data-driven items and the modifier values that control armor points, toughness, attack damage, speed and durability. Changes are written as JSON datapack files, so a modpack or datapack author can adjust item behavior without writing a line of Java. The mod is meant to stay simple and lightweight, and to work alongside other mods rather than replace them.
Reloading is live: a reload applies changes at once, which makes it practical to tune values while testing. Dynamic discovery searches for modded modifiers and components, and the mod is said to support most mods out of the box. Datagear adds some tags to help target items, and a wiki with examples explains how the data structure is written.
The mod requires Fabric API, Fabric Language Kotlin and KotlinLangForge. It runs on the server only, so players join without installing it. It is published for Fabric and NeoForge across five release versions, 26.1 – 26.3, and is open source under the MIT License.
Key features
Data-driven items
Item components and their modifiers are edited through JSON files instead of code.
Live reload
A reload applies JSON changes immediately, so values can be tuned without restarting the game.
Dynamic discovery
Modded modifiers and components are found automatically, so most mods work without extra setup.
Custom slots API
A DataGearPlugin API lets other mods register custom slots, such as those used by Curios, Trinkets or Accessories.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Who it’s for: Datagear is aimed at modpack developers, datapack authors and mod developers who want item component data to be editable without code.
How it compares
NBT Tools is a Fabric and NeoForge option for 1.21 – 26.1.2, client-side only and open source under the MIT License, so it runs on the player's side instead of the server. Config Datapack covers 1.21.6 – 26.3 on Fabric, Forge, NeoForge and Quilt, is server required with optional client support, and is open source under the GNU General Public License v3.0 only.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Datagear | Fabric and NeoForge | 26.1 – 26.3 | Server-side only | 2026-09-17 |
| NBT Tools | Fabric and NeoForge | 1.21 – 26.1.2 | Client-side only | 2026-06-14 |
| Config Datapack | Fabric, Forge, NeoForge and Quilt | 1.21.6 – 26.3 | Server required, client optional | 2026-08-26 |
Questions
Does Datagear need to be installed on the client?
Which dependencies does Datagear require?
Can Datagear change modded items?
In the catalog
Datagear is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 8,071 mods support Minecraft 26.3.
More from WFPhantom
Similar mods
What the author says
DataGear is a powerful hot-reloadable library mod for Minecraft 26.1+ that exposes components, flags, and other modifiers as data. It allows developers to modify them using simple JSON datapack files without writing a single line of code. Mod, Datapack and Modpack developers: Read the wiki to see how to use DataGear.
Official listing
- Modrinth page
- modrinth.com/mod/datagear
- Owner
- WFPhantom
- Published
- 2026-03-17
- Updated on Modrinth
- 2026-09-17
- Facts verified
- 2026-10-15