CurseForge · Minecraft mod

F3 Customizer Backport

Backports Minecraft's modern Debug Options screen to older Fabric versions, letting you choose exactly which F3 entries are hidden, shown with F3, or always visible.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which F3 Customizer Backport release should I use?

Updated 5 days ago

Latest stable file f3-customizer-backport-fabric-1.21.1-1.0.0.jar

Game version 1.21.1

Loader Fabric

F3 Customizer Backport f3-customizer-backport-fabric-1.21.1-1.0.0.jar targets 1.21.1 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.

Where it goes

Is F3 Customizer Backport required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say

Dedicated server Source doesn’t say

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 does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does F3 Customizer Backport f3-customizer-backport-fabric-1.21.1-1.0.0.jar need?

f3-customizer-backport-fabric-1.21.1-1.0.0.jar. Change the file and its required mods may change too.

No extra mods listed for this file

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 F3 Customizer Backport without breaking your instance.

Built for F3 Customizer Backport f3-customizer-backport-fabric-1.21.1-1.0.0.jar. Pick another file and the loader, install side or required mods may change.

01
Stick to this file

Use f3-customizer-backport-fabric-1.21.1-1.0.0.jar. It targets 1.21.1 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

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 f3-customizer-backport-fabric-1.21.1-1.0.0.jar. It opens that exact file at the source.

About this project

What does F3 Customizer Backport add?

F3 Customizer Backport

F3 Customizer Backport brings Minecraft's modern Debug Options screen to older Fabric versions.

It lets you precisely choose how every supported entry on the F3 debug screen should be displayed:

Hidden: the information is never displayed.
F3 Only: the information appears when the F3 screen is open.
Always Visible: the information remains visible without keeping the full F3 screen open.

How to open the menu

Press:

`F3 + F6`

You can then customize the visibility of the available debug information.

On some keyboards, you may also need to hold the Fn key.

Features

Modern Debug Options screen backported to Minecraft 1.21.1
Precise control over individual F3 entries
Hidden, F3-only and always-visible display modes
Cleaner and less cluttered debug screen
Simple in-game configuration menu
Lightweight and optimized
Client-side only

Compatibility

Minecraft: 1.21.1
Mod loader: Fabric
Environment: Client-side

Modpacks

Feel free to use this mod in modpacks.

❤️ Support Me ❤️

Creating mods takes a lot of time. If you enjoy my work and would like to support me, you can join my Patreon. Patreon members can also get early access to test versions of my mods. Supporting me is completely optional, and public versions remain freely available.

My mods

Project description from CurseForge.

Pick your setup