CurseForge · Minecraft mod
GriefLogger
A fast mod that uses SQLite or MySQL to log player interactions. Like CoreProtect but for modded.
Quick answer
Which GriefLogger release should I use?
GriefLogger NeoForge 26.1.2 - 20.1.1 targets 26.1.2 with NeoForge. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. All 3 required mods have matching files.
Where it goes
Is GriefLogger required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
The source does not explicitly classify this release as client-only or server-only.
What else does GriefLogger NeoForge 26.1.2 - 20.1.1 need?
GriefLogger NeoForge 26.1.2 - 20.1.1. Change the file and its required mods may change too.
Install Knot, YAML Config, UI Lib 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 GriefLogger without breaking your instance.
Built for GriefLogger NeoForge 26.1.2 - 20.1.1. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use GriefLogger NeoForge 26.1.2 - 20.1.1. It targets 26.1.2 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Knot, YAML Config, UI Lib 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 it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside GriefLogger NeoForge 26.1.2 - 20.1.1. It opens that exact file at the source.
About this project
What does GriefLogger add?

Note: This description is for the 1.20.1+ versions only.
What is GriefLogger
Grieflogger is a blazing fast mod that logs player interactions like breaking and placing blocks, killing entities, dropping, picking up, breaking, consuming items, and much more!
To store all of this data, GriefLogger uses a SQLite database by default. This database is stored within the config file. You can also connect GriefLogger to a MySQL databasevia the config to make it run even faster.
All of the transactions between the mod and the database are asynchronous/multithreaded. This means that the server doesn't have to wait for the transaction to be done before continuing to run other code.
Commands
| Command | Explanation |
|---|---|
| /grieflogger inspect | Enables or disables the inspection mode. |
| /grieflogger lookup <filters> | Shows all data available based on filters. |
| /grieflogger page <page number> | Shows a certain page number. Can also be achieved by clicking on the arrows in the chat message. |
Filters
| Filter | Example | Explanation |
|---|---|---|
| Action | action:place_block,break_block |
Only shows places and broken blocks. |
| Exclude | exclude:sand |
Exludes the sand block from the search results. |
| Include | include:sand,dirt |
Only shows dirt and sand interactions. |
| Radius | radius:100 |
Shows all interactions in a radius of 100 blocks from the player. |
| Time | time:1d |
Shows all interactions in the last day. |
| User | user:Player1 |
Shows all interactions made by Player1 |
Note: Include and exclude filters cannot be used together.
Examples
Lookup command
Use the lookup command to view interfactions based on filters. 
Inspecting Block
Right click on a block to view the interactions of the adjacent block.
Left click on a block to view the interactions of the clicked block. 
Inspecing Container
Right click on a container (Any block that holds items. e.g. Chest or Furnace) to view the interactions with the container (e.g. adding and removing items).
Left click on a container to view when the container was broken or placed. 
Inspiration
I want to extend my thanks to CoreProtect for being a major source of inspiration in the creation of GriefLogger. Their project greatly influenced the development of this mod, and I appreciate the valuable insights it provided.
Project description from CurseForge.
Pick your setup
GriefLogger by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
2 loader builds26.1.2
2 loader builds1.21.11
2 loader builds1.21.10
2 loader builds1.21.9
2 loader builds1.21.8
2 loader builds1.21.7
2 loader builds1.21.6
2 loader builds1.21.5
2 loader builds1.21.4
2 loader builds1.21.1
2 loader builds1.20.6
2 loader buildsShowing 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
GriefLogger versions and loaders
GriefLogger NeoForge 26.1.2 - 20.1.1
grieflogger-neoforge-20.1.1.jar
2 Aug 2026
GriefLogger NeoForge 1.21.1 - 1.2.10-1.21.1
grieflogger-1.2.10-1.21.1-neoforge.jar
31 Jul 2026
GriefLogger Fabric 1.21.1 - 1.2.10-1.21.1
grieflogger-1.2.10-1.21.1-fabric.jar
31 Jul 2026
GriefLogger NeoForge 26.2 - 21.1.0
grieflogger-neoforge-21.1.0.jar
30 Jul 2026
GriefLogger Fabric 26.2 - 21.1.0
grieflogger-fabric-21.1.0.jar
30 Jul 2026
GriefLogger NeoForge 26.1.2 - 20.1.0
grieflogger-neoforge-20.1.0.jar
29 Jul 2026
GriefLogger Fabric 26.1.2 - 20.1.0
grieflogger-fabric-20.1.0.jar
29 Jul 2026
GriefLogger NeoForge 1.21.11 - 19.1.1
grieflogger-19.1.1-neoforge.jar
9 Jun 2026
GriefLogger Fabric 1.21.11 - 19.1.1
grieflogger-19.1.1-fabric.jar
9 Jun 2026
GriefLogger NeoForge 1.21.11 - 19.1.0
grieflogger-19.1.0-neoforge.jar
19 Feb 2026
GriefLogger Fabric 1.21.11 - 19.1.0
grieflogger-19.1.0-fabric.jar
19 Feb 2026
GriefLogger NeoForge 1.21.11 - 19.0.5
grieflogger-19.0.5.jar
2 Feb 2026
Looking for an older file? The official CurseForge project page is in Resources.