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Modrinth · Minecraft mod
Old Debug Screen
This mod restores the old debug screen (Old F3 Menu) that was changed in version 1.21.9. (Revert F3 Menu)
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which Old Debug Screen release matches 26.1.2?
Best match for your filters 1.0.0+26.1
Game version 26.1, 26.1.1, 26.1.2
Loader Fabric
Old Debug Screen 1.0.0+26.1 targets 26.1, 26.1.1, 26.1.2 with Fabric. It must be installed on the client. Do not install it on the dedicated server. No extra mods listed for this file.
Where it goes
Is Old Debug Screen required on the client, server, or both?
It must be installed on the client. Do not install it on the dedicated server.
Client Required
Dedicated server Not supported
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
This file is marked client-only.
What else does Old Debug Screen 1.0.0+26.1 need?
1.0.0+26.1 on 26.1.2. Every mod below is checked against that same setup.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Old Debug Screen without breaking your instance.
Built for Old Debug Screen 1.0.0+26.1 on 26.1.2. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.0.0+26.1. It targets 26.1, 26.1.1, 26.1.2 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
It must be installed on the client. Do not install it on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.0.0+26.1. It opens that exact file at the source.
About this project
What does Old Debug Screen add?
This mod restores the old debug screen from Minecraft, which was changed in version 1.21.9. The update removed some features that players found useful for debugging and gameplay. This mod brings back those original features for a more informative experience.
Keywords: Reverts the debug screen, Old F3 Menu, Old F3 Debug Screen
Before
After
Project description from Modrinth.
Pick your setup
Old Debug Screen by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Minecraft version
26.2
1 loader buildMinecraft version
26.1.2
1 loader buildMinecraft version
26.1.1
1 loader buildMinecraft version
26.1
1 loader buildMinecraft version
1.21.11
1 loader buildMinecraft version
1.21.10
1 loader buildMinecraft version
1.21.9
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Old Debug Screen versions and loaders
1.0.0+26.1
OldDebugScreen-1.0.0+26.1.jar
21 Apr 2026
Client Required Server Not supported Dependencies No extras listed Listed on Release listing
Check the 26.1.2 · Fabric setup 26.126.1.126.1.2Fabric release
Looking for an older file? The official Modrinth project page is in Resources.
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