Low Durability Switcher is a lightweight mod designed to protect your tools and gear from accidental breakage. When your tool’s durability drops below a certain threshold, the mod automatically switches your active hotbar slot—helping you avoid breaking valuable equipment during intense gameplay.

For Quilt users, the Quilted Fabric API is required.

Features

There are no complex settings, making the mod simple and user-friendly.
A keybind allows you to toggle the mod on and off. You can find this toggle in Options → Controls.
The active slot will automatically switch when your tool has less than 10 durability remaining.
The mod remembers your toggle status even after exiting the game—you don’t have to re-enable it each time.

Since the 1.2 update, the mod includes:

Mod Menu support (requires Mod Menu and Cloth Config)
A new feature: Armor Sound Alert — emits a sound when your armor’s durability falls below a set threshold.

Demonstration:
GitHub video demo

If you encounter a bug, please open an issue on the GitHub repository.

Credit: FanyaOff