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F3 Spec Changer

by live-by-linux

F3 Spec Changer lets players choose which hardware lines appear on Minecraft's F3 debug screen, replacing the default set.

FabricClient-side onlyMIT LicenseOpen source26.1.2

What it does

The vanilla F3 debug screen shows a fixed list of hardware and rendering values. This mod changes which of those values are displayed and what they read, so a player can keep only the lines they need. It runs on the client alone, so only the player who installs it sees the change, and servers run without it. Fabric API is required, and the mod is not compatible with BetterF3, which also alters the same screen. The code is open source under the MIT License, with version 1.1.0 for 26.1.2 as the latest Fabric build, released on 2026-08-04.

Key features

  1. Custom hardware lines

    Choose which hardware information is displayed on the F3 debug menu, instead of the vanilla default set.

  2. Changed values

    Modify the values shown on the debug screen, so the readout matches what a player wants to monitor.

  3. Compatible with other screen mods

    Mods that change or swap out the F3 screen can run next to it, but BetterF3 is the exception, since the two cannot be used together.

Compatibility

Latest build for each game version and loader.

26.1.21.1.0
ReleaseBetaAlphaNot available

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

Requirements

Dependencies declared by the latest file for each loader.

Required 1

Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required

Incompatible 1

BetterF3BetterF3 is a mod that replaces Minecraft's original debug HUD with a highly customizable, more human-readable HUD.
Incompatible

Questions

Does F3 Spec Changer need Fabric API?

Yes. Fabric API is a required dependency and must be installed next to F3 Spec Changer on Fabric.

Can F3 Spec Changer run with BetterF3?

No. The mod is listed as incompatible with BetterF3, since both alter the same debug screen.

More from live-by-linux

All projects
LTled tech26.1.2

What the author says

F3 Spec Changer lets you customize the hardware information displayed in Minecraft's vanilla F3 debug screen to any text you want! This mod is designed to modify the vanilla F3 debug screen. Because of this, it may not be compatible with other mods that alter or replace the F3 screen.
live-by-linux, on the Modrinth page

Official listing

Owner
live-by-linux
Published
2026-07-28
Updated on Modrinth
2026-08-04
Facts verified
2026-10-15
Open on ModrinthCompare