F4-

F4-

F4 is an MCTiers-approved alternative to traditional freelook mods used in clients such as Feather and Lunar, designed to comply with camera movement rules.

by
869 Downloads
fabric
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Screenshots

F4- Screenshot 1

About this Mod

This project is an MCTiers-friendly alternative to the freelook mods or widgets found in clients such as Feather Client, Lunar Client, and others.

Freelook is banned on MCTiers because it modifies how the camera behaves. This mod complies with their mod policy by using Minecraft’s default F5 perspective while holding F4, simply switching the camera to third person without altering any camera mechanics.

You can change the F4 keybind to any key you prefer by opening the Controls menu, navigating to the F4 Keybind category, and assigning it to your desired key.

Available Versions

F4release
MC 1.21, 1.21.1, 1.21.2, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11fabric
January 5, 2026

How to Install F4- on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

3

Install Mod

Open the mod browser in the dashboard and search for "F4-". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11, 1.21.10, 1.21.9 (+9 more)

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

F4- server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.

Is F4- compatible with fabric?

F4- officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with F4- – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if F4- consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install F4- with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Unsupported

Supported Versions

1.21.111.21.101.21.91.21.81.21.71.21.61.21.51.21.41.21.31.21.2+2 more