CurseForge · Minecraft mod
Data Dumper
A Minecraft mod that helps datapack developers quickly browse and export registry data.
Quick answer
Which Data Dumper release matches 26.1.2?
Data Dumper 0.6.1 targets 1.20.1, 1.21.1, 26.1 with Fabric, Forge, NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 5 required mods have matching files.
Where it goes
Is Data Dumper required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Data Dumper 0.6.1 need?
0.6.1 on 26.1.2. Every mod below is checked against that same setup.
Install Preloading Tricks, Fabric Language Kotlin, KotlinLangForge, KotlinLangForge and 1 more first. We found matching files for this game-version and loader setup. 1 comes through another mod in the chain.
1 extra mod was pulled in by another dependency. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Data Dumper without breaking your instance.
Built for Data Dumper 0.6.1 on 26.1.2. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 0.6.1. It targets 1.20.1, 1.21.1, 26.1 with Fabric, Forge, NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Preloading Tricks, Fabric Language Kotlin, KotlinLangForge, KotlinLangForge and 1 more first. We found matching files for this game-version and loader setup. 1 comes through another mod in the chain.
- 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 0.6.1. It opens that exact file at the source.
About this project
What does Data Dumper add?
DataDumper
A Minecraft mod that helps datapack developers quickly browse and export registry data.
About
Ever found yourself constantly needing to check what's inside a registry while developing datapacks? Or wanting to filter for specific blocks and items?
DataDumper lets you browse registries directly in-game via commands, with support for tag and regex filtering. You can also export registry entries as JSON files for easy debugging.
On top of that, DataDumper prevents game crashes caused by invalid datapacks, so you can debug with peace of mind.
Features
- List all registries in the game
- Filter registry contents by tag or regex
- Export registry entries as JSON files
- Export datapack entries that failed to parse, making it easy to track down errors
- Prevent crashes when creating a world with invalid datapacks
- Click chat messages to copy all entries at once
Commands
| Command | Description |
|---|---|
/datadumper registries |
List all registries |
/datadumper registry <key> |
View all entries in a registry |
/datadumper registry <key> #<tag> |
Filter registry entries by tag |
/datadumper registry <key> "<regex>" |
Filter registry entries by regex |
/datadumper entry <key> |
Export registry entries as JSON files |
/datadumper entry <key> #<tag> |
Filter and export by tag |
/datadumper entry <key> "<regex>" |
Filter and export by regex |
Exported files are saved in the .datadumper/ folder under the server's working directory.
Screenshots
Regex filtering — Find all blocks containing "planks":

Tag filtering — Find all blocks tagged #c:chests:

Supported Versions
| Minecraft Version | Fabric | Forge | NeoForge |
|---|---|---|---|
| 1.20.1 | ✅ | ✅ | — |
| 1.21.1 | ✅ | — | ✅ |
| 26.1 | ✅ | — | ✅ |
Recommended Companions
- Mod Sets — Easily disable development mods in published modpacks
Project description from CurseForge.
Pick your setup
Data Dumper by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
3 loader builds26.1.1
3 loader builds26.1
3 loader builds1.21.3
1 loader build1.21.2
1 loader build1.21.1
3 loader builds1.21
3 loader builds1.20.6
1 loader build1.20.5
1 loader build1.20.4
1 loader build1.20.3
1 loader build1.20.2
1 loader buildShowing the newest 12 of 14 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Data Dumper versions and loaders
0.6.1
data-dumper-0.6.1.jar
26 May 2026
0.6.0
data-dumper-0.6.0.jar
4 May 2026
Looking for an older file? The official CurseForge project page is in Resources.