Legacy Hitbox

A customizable client-side Minecraft 1.8.9 mod that renders player hitboxes, built on Legacy Fabric.

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legacy-fabricutility

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About this Mod

Legacy Hitbox

A client-side Minecraft 1.8.9 mod that renders player hitboxes with fully configurable colors and thickness, built on Legacy Fabric.

Requirements

Legacy Fabric API

Features

Renders visible hitboxes for all players
Choose any RGBA color or gradient for the hitbox color
Configurable outline thickness

Config

Press H in-game to open the config screen. A few settings can be configured here:

Hitboxes: ON / OFF (enables or disables hitbox rendering)

Solid Color / Gradient (toggles between color modes)

Solid Color Mode: RGBA (customizable color)

Gradient Mode: RGBA (set separate RGB values for the top and bottom)

Thickness: # (controls line width; 0.5 - 5.0)

Building from Source

./gradlew build

Usage

Feel free to use Legacy Hitbox's source code in any of your own projects

Available Versions

Legacy Hitbox 1.0.0release

MC 1.8.9legacy-fabric

April 17, 2026

How to Install Legacy Hitbox on Your Server

Order Server

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

Set legacy-fabric Loader

In the panel under "Egg", select the legacy-fabric loader and matching Minecraft version (1.8.9).

Install Mod

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

Compatibility

Mod Loaders

legacy-fabric

Minecraft Versions

1.8.9

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Legacy Hitbox server crashes on startup – what to do?

Most common cause: wrong legacy-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 (1.8.9). You can switch loaders with one click in the panel.

Is Legacy Hitbox compatible with legacy-fabric?

Legacy Hitbox officially supports legacy-fabric for Minecraft 1.8.9. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Legacy Hitbox – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Legacy Hitbox 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.