F3 Commands
Toggle the F3 debug keys using commands
About this Mod
Available Versions
How to Install F3 Commands on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.19.4).
Install Mod
Open the mod browser in the dashboard and search for "F3 Commands". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.19.4
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
F3 Commands 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 (1.19.4). You can switch loaders with one click in the panel.
Is F3 Commands compatible with fabric and quilt?
F3 Commands officially supports fabric, quilt for Minecraft 1.19.4. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with F3 Commands – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if F3 Commands 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.
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