F3 CHANGER
F3 Changer lets players rebind the key that toggles the F3 debug menu in Minecraft, through the game's own controls screen.
What it does
By default the F3 key toggles the debug overlay. This Fabric mod adds a custom keybinding for the debug menu, so the key can be moved to another button. The change is made in Options, then Controls, then Key Binds, where the Debug Menu category lists the entry to reassign. The mod is built on Fabric API Mixins and does not replace any other part of the game.
The mod is client-side only, so a server does not need it and players join without installing anything. It is published for Fabric only, across 10 release versions, including the 26.1, 26.2 and 26.3 snapshot builds. The code is open source under the Apache License 2.0, and the source code and wiki are linked from the project page.
Key features
Debug menu keybinding
A custom keybinding is registered for the F3 debug menu toggle, so the key can be changed in the controls menu.
Controls menu entry
The binding appears under the Debug Menu category in Key Binds, next to the other controls the game already offers.
Configurable key
Any key can be assigned to the debug menu toggle, which removes the need to reach for F3 on keyboards where it is awkward.
Mixin-based implementation
The change uses Fabric API Mixins to hook into the existing debug handling instead of rewriting it.
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x5 of 5 versions with builds
This mod also publishes snapshot builds. Snapshots are not shown in the matrix.
Use cases
Who it’s for: Players who use the debug overlay often and want its toggle key somewhere else. The mod suits single-player and multiplayer clients, since only the client needs it.
How it compares
Debug Options is a Fabric client-side mod for 1.21.9 – 1.21.10 under All rights reserved, and it is not open source. Name Changer is a Fabric client-side mod for 1.21.4 – 1.21.5 under the GNU Lesser General Public License v2.1 only, and it is open source. VisualKeys covers 1.21 – 26.3 on Fabric and is closed, under All rights reserved. F3 Changer is open source under the Apache License 2.0, so the supported version list is the main difference in function.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| F3 CHANGER | Fabric | 1.21.7 – 26.3 | Client-side only | 2026-09-22 |
| Debug Options | Fabric | 1.21.9 – 1.21.10 | Client-side only | 2025-09-13 |
| Name Changer | Fabric | 1.21.4 – 1.21.5 | Client-side only | 2025-05-04 |
| VisualKeys | Fabric | 1.21 – 26.3 | Client-side only | 2026-09-23 |
Questions
Does F3 Changer need Fabric API?
Does a server need F3 Changer?
Which game versions are supported?
Is the key change saved between sessions?
In the catalog
F3 CHANGER is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 8,071 mods support Minecraft 26.3.
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What the author says
By default, Minecraft uses the F3 key to toggle the debug overlay. This mod lets you rebind that key to any key you prefer through the game's controls menu.
Official listing
- Modrinth page
- modrinth.com/mod/f3-changer
- Owner
- WhitoutCookies
- Published
- 2025-10-08
- Updated on Modrinth
- 2026-09-22
- Facts verified
- 2026-10-15