
Fly Hack
It's fly-hack. Sorta. It more of boosts you but it counts!
Screenshots

About this Mod
This mod adds a configurable keybind to boost your player.
When in-game open the pause menu and go to Options -> Controls -> Keybinds -> And find the "Fly-Hack" category and set the "Boost" key to whatever key you want! By default this key is R.
This mod doesn't work on any server and the server must have this mod installed server-side for it to work on the client, I do have a version that doesn't need the server-side mod but it is not publicly available.
While it can be abused for flight, that wasn’t the original intention - I actually stumbled upon it by accident while testing another mod and thought it was funny enough to release.
The boost is genuinely useful for building. Whether you’re in singleplayer or creative mode, it lets you zip around much faster than standard creative flight without needing to constantly adjust your flight speed or switch game modes.
⚠️ I do not condone using this mod for cheating in other servers, and I am not liable for what you do with this.
Available Versions
How to Install Fly Hack 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 (1.20.4).
Install Mod
Open the mod browser in the dashboard and search for "Fly Hack". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.4, 1.20.3, 1.20.2 (+12 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Fly Hack 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 (1.20.4). You can switch loaders with one click in the panel.
Is Fly Hack compatible with fabric?
Fly Hack officially supports fabric for Minecraft 1.20.4, 1.20.3, 1.20.2. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Fly Hack – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Fly Hack 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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Install Fly Hack with just one click on your server.