ModsFinder

KeyF3

by Yunivers

KeyF3 restores the debug screen's keyboard shortcuts for the Beta build, so holding F3 with another key runs the same actions modern Minecraft uses.

FabricBabricClient-side onlyMIT LicenseOpen sourceb1.7.3

What it does

Holding F3 and pressing a second key triggers a debug action, such as reloading chunks, showing hitboxes, clearing chat or toggling chunk boundaries. KeyF3 backports these bindings to the Beta build, which predates them, and maps each one to the key used in later versions.

The mod needs StationAPI, the modding framework for the Beta build on Fabric and Babric, and runs on the client alone, so servers and other players do not need it. Files are published for b1.7.3 only, with snapshot builds included. The source code and issue tracker are public, and the project is open source under the MIT License. BH Creative and RetroCommands are optional and add no required setup.

Key features

  1. Chunk reload shortcut

    F3 with R reloads the chunks around the player without restarting the game.

  2. Hitbox display

    F3 with B shows entity hitboxes, which helps when checking collision or positioning.

  3. Chat clearing

    F3 with D clears the chat window in one step.

  4. Chunk boundary overlay

    F3 with G draws the borders of loaded chunks, useful when building across chunk edges.

  5. Modern F3 bindings

    Pause on lost focus, the entity list and resource pack reloading are mapped to F3 combinations as in later versions.

No per-version build data
Modrinth lists game versions for this project (b1.7.3), but the source data has no build per game version and loader, so the compatibility grid is not shown.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

StationAPIA general use API for Fabric Loader mods on legacy Minecraft versions.
Required

Optional 2

BH CreativeCreative mod for Minecraft beta 1.7.3
Optional
RetroCommandsRetro Commands built on Fabric for b1.7.3, but it also works in Multiplayer and has an API.
Optional

How it compares

Full comparison

Craftable Chainmail (StAPI) is also built for the Beta build on Fabric and Babric, is a client and server mod, and is released under the CC0 1.0 Universal license. BetaEdit is a server-required mod under the MIT License, with client installation optional. HudTweaks StationAPI is a client-side mod for the same build and license as KeyF3, changing the heads-up display instead of debug keys.

ModLoadersGame versionsEnvironmentUpdated
KeyF3Fabric and Babricb1.7.3Client-side only2025-10-11
Craftable Chainmail (StAPI)Fabric and Babricb1.7.3Client and server2024-08-10
BetaEditFabric and Babricb1.7.3Server required, client optional2026-06-09
HudTweaks StationAPIFabric and Babricb1.7.3Client-side only2026-02-01

Questions

Does KeyF3 need StationAPI?

Yes. StationAPI is a required dependency and must be installed alongside KeyF3 on Fabric or Babric for the Beta build.

Does the server need KeyF3 installed?

No. Players add it to their own game, and a server needs no copy.

Which game versions does KeyF3 support?

Files are published for b1.7.3 only, and snapshot builds are published as well.

In the catalog

KeyF3 is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 567 mods support Minecraft b1.7.3.

Utility mods36,990Fabric modsMods for b1.7.3567

More from Yunivers

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Apple Slicesb1.7.3GamerulePleaseb1.7.3ReGUIb1.7.3YuniUtilb1.7.3Double Hotbarb1.7.3Crafting Totalb1.7.3

Similar mods

Zumeb1.7.3 – 1.21.11Lightyb1.7.3 – 26.3Thorough Keybindingsb1.0 – 26.3FConfigLibrd-132211 – 26.3MojangFix StationAPI Editionb1.7.3Exit Confirmationa1.0.4 – 26.2

Official listing

Owner
Yunivers
Published
2025-04-23
Updated on Modrinth
2025-10-11
Facts verified
2026-10-15

Tags

Utility
Open on ModrinthCompare