
ModsJava
KeyF3
Minecraft Java mod. Downloads from the MC Java Mods app on Android.
⬇ Download on Modrinth
KeyF3
A Beta 1.7.3 backport of modern F3 bindings
Commands
- [F3 + A] Reload chunks
- [F3 + B] Show hitboxes
- [F3 + C] Copy location as /tp command, hold F3 + C to crash the game
- [F3 + D] Clear chat
- [F3 + G] Show chunk boundaries
- [F3 + P] Pause on lost focus
- [F3 + Q] Show this list
- [F3 + T] Reload resource packs
- [F3 + Esc] Pause without pause menu (if pausing is possible)
- [F3 + F4] Cycle survival <-> creative (Requires BHCreative)
Screenshots

Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: b1.7.3
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Ships as keyf3-1.0.2.jar — drop this file into the mods folder
- Download size: 55 KB
- Download link checked 9 Oct 2026 — working
These come from our own check of the pack file, not from the source page.