ModsFinder

F3 Customizer Backport

by HappyMorphose

F3 Customizer Backport brings the modern Debug Options screen to Fabric builds for 1.21.1, so the F3 overlay can be set up without older tools.

FabricClient-side onlyAll rights reserved1.21.1

What it does

The F3 Customizer Backport ports Minecraft's newer Debug Options screen back to 1.21.1, letting a player choose exactly which F3 entries appear. Hidden entries can be shown again and the overlay can stay visible at all times. It runs on the client alone, so servers need nothing installed. The only published build targets Fabric for 1.21.1, released 2026-07-27 under All rights reserved.

Key features

  1. Debug Options screen

    A settings screen lists each F3 entry so the player can pick the ones shown in the debug overlay.

  2. Hidden entries restored

    Entries that were previously hidden can be turned back on from the same screen without editing files.

  3. Always visible overlay

    The F3 overlay can be kept on screen at all times, so readings stay in view while the player moves.

Compatibility

Latest build for each game version and loader.

1.21.11.0.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

How it compares

Full comparison

Minimal Debug Menu is a Fabric client mod for 1.21.11 under All rights reserved. Debug Properties Plus is open source under the MIT License and runs on client or server for 1.21.10 – 26.3. Old F3 Screen is a Fabric client mod for 1.21.11, also under All rights reserved.

ModLoadersGame versionsEnvironmentUpdated
F3 Customizer BackportFabric1.21.1Client-side only2026-07-27
Minimal Debug MenuFabric1.21.11Client-side only2026-03-31
Debug Properties PlusFabric1.21.10 – 26.3Client or server, optional2026-09-14
Old F3 ScreenFabric1.21.11Client-side only2026-02-01

Questions

Does F3 Customizer Backport need to be on the server?

No. It is installed on the player's side alone, so servers need nothing.

Which loader and version does the mod need?

The only published build is for Fabric and 1.21.1, so Forge and NeoForge are not covered.

In the catalog

F3 Customizer Backport is one of 8,016 Management mods on ModsFinder, and one of 5,930 Management mods for Fabric. 32,366 mods support Minecraft 1.21.1.

Management mods8,016Fabric modsMods for 1.21.132,366

More from HappyMorphose

All projects
Cobblemon Ball Satchel1.21.1Evil mobs1.21.1 – 1.21.11Cobblemon EV Pool1.21.1Carpenter's Delight1.21.1 – 1.21.11The Pandoras Box1.21.1 – 1.21.11Retro converter1.21.1 – 1.21.11

Similar mods

Cherished Worlds1.12.2 – 26.3Default Options1.18 – 26.3Axiom1.20 – 26.3Resourcify1.8.9 – 26.3Rebind Narrator1.16.1 – 26.1.2Paxi1.19.2 – 26.1.2

What the author says

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.
HappyMorphose, on the Modrinth page

Official listing

Owner
HappyMorphose
Published
2026-07-27
Updated on Modrinth
2026-07-27
Facts verified
2026-10-15

Tags

ManagementUtility
Open on ModrinthCompare