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F3 KeybindMinecraft mod for 1.21.4

This mod allows you to change the keybind of the Debug Menu (F3). Feel free to report any issues on my issues page (linked on the sidebar). It would be great if you could star this silly mod.

client onlynewest supported 1.21.4UtilityGame Mechanics
Latest version
1.1.2
Minecraft
1.20.2 to 1.21.4
Java
Java 21+
Loader
Fabric
Licence
MIT
Downloads
9.1k
Updated
16 mo ago
Available on
Modrinth
Space NodePartner

Host F3 Keybind servers

One click and F3 Keybind is installed with the right loader, on hardware built for it.

  • 1.21.4
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version F3 Keybind declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.4Fabric21+declared3 Dec 2024
1.20.4Fabric17+declared7 Dec 2023
1.20.3Fabric17+declared4 Dec 2023
1.20.2Fabric17+declared20 Sept 2023

Download

From F3 Keybind’s own host. Nothing is re-hosted here.

1.1.2release24 Mar 2025

f3Keybind-1.1.2.jar · 0.0 MB · for 1.21.4

Download latest
b50f766d71d6…
Older versions5
  • 1.1.2-1.20.47 Mar 20241.20.40.0 MB817 downloads09535943b92f…Get
  • 1.1.13 Feb 20241.20.40.0 MB254 downloads0cacf6658ee7…Get
  • 1.1-1.20.33 Feb 20241.20.30.0 MB121 downloads62dfcd8e4f8d…Get
  • 1.0.121 Oct 20231.20.20.0 MB5.9k downloads84e5520e2cae…Get
  • 1.021 Oct 20231.20.20.0 MB156 downloads88343653d0f9…Get

Frequently asked

Does F3 Keybind work on Minecraft 1.21.4?

Yes. 1.21.4 is the newest Minecraft version F3 Keybind declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does F3 Keybind support?

Everything the author has declared, from 1.20.2 up to 1.21.4. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install F3 Keybind on the client or the server?

The client only. There is nothing to install on the server, so it works on any server you can already join.

Which loader does F3 Keybind need?

Fabric. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for F3 Keybind?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the mod itself.

What licence is F3 Keybind under?

MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install F3 Keybind?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download F3 Keybind safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Last checked 6 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

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