Fabric API Needed by Debug Utils 1.21.8-1.0.9-fabric
requiredMatching file found Matched file: [1.21.8] Fabric API 0.136.1+1.21.8
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CurseForge · Minecraft mod
Debug Utils
Enables various debugging features of minecraft
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which Debug Utils release matches 1.21.8 Fabric?
Best match for your filters 1.21.8-1.0.9-fabric
Game version 1.21.8
Loader Fabric
Debug Utils 1.21.8-1.0.9-fabric targets 1.21.8 with Fabric. Installation on the client is optional. Installation on the dedicated server is optional. All 1 required mods have matching files.
Where it goes
Is Debug Utils required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
Client Optional
Dedicated server Optional
Loader for this release Fabric
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
The source marks this as usable on both the client and server.
What else does Debug Utils 1.21.8-1.0.9-fabric need?
1.21.8-1.0.9-fabric on 1.21.8 Fabric. Every mod below is checked against that same setup.
Install Fabric API first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Debug Utils without breaking your instance.
Built for Debug Utils 1.21.8-1.0.9-fabric on 1.21.8 Fabric. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.21.8-1.0.9-fabric. It targets 1.21.8 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.21.8-1.0.9-fabric. It opens that exact file at the source.
About this project
What does Debug Utils add?
🔎 Debug Utils
Mojang has various debugging tools implemented in minecraft that are removed for the release jar. This mod adds them back which might be useful for various cases. You will need this mod on both the client and the server.
Debugging features include for example:
Entity Pathing: Showing a mobs pathfinding
Entity Brains: Showing the brain states of mobs
Entity Goals: Showing a mobs goal tasks
> 1.21.9
As of 1.21.9 the debugging features are no longer stripped for the release jar and can be accessed by the user. The process to do so though involves the use of jvm arguments meaning you cannot change it in game. To accomodate that now this mod allows you to toggle the features in game without restarting it.
How to use
Use the command /debugutils <feature> <on | off> to turn a debugging feature on/off.
To turn all currently active features off use /debugutils off.
If you are on 1.21.9 the command has now been split between debugutils and debugutils_client.debugutils_client toggles all features that do not require data from the server.
Project description from CurseForge.
Pick your setup
Debug Utils by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Minecraft version
26.2
2 loader buildsMinecraft version
26.1.2
2 loader buildsMinecraft version
1.21.11
2 loader buildsMinecraft version
1.21.9
2 loader buildsMinecraft version
1.21.8
2 loader buildsMinecraft version
1.21.5
2 loader buildsMinecraft version
1.21.4
2 loader buildsMinecraft version
1.21.1
2 loader buildsMinecraft version
1.21
2 loader buildsMinecraft version
1.20.6
2 loader buildsMinecraft version
1.20.1
2 loader buildsMinecraft version
1.19.4
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
Debug Utils versions and loaders
1.21.8-1.0.9-fabric
debugutils-1.21.8-1.0.9-fabric.jar
27 Jul 2025
Client Optional Server Optional Dependencies 1 required · matched Listed on Release listing
Check the 1.21.8 · Fabric setup 1.21.8Fabric release
Looking for an older file? The official CurseForge project page is in Resources.
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