GroundCheck

GroundCheck is a simple client-side mod that warns you when you’re about to break the block you’re standing on – preventing accidental falls.

In vanilla Minecraft, your hitbox is 0.6 blocks wide, while a full block is 1*1. If you stand exactly in the centre of a block and break it, you’ll have nothing to stand on – you fall, even while sneaking.

The mod highlights dangerous blocks with a red outline when you look at them. It also detects if you’re standing on two blocks at once – breaking one while the other remains will not trigger the warning.

What it does:

Checks if you’ll have solid ground under you after breaking the targeted block.

Highlights unsafe blocks with a red outline (colour configurable).

Works only in Survival and Adventure modes (ignores Creative and flight).

Fully client-side – no server traffic.

Features:

No extra mechanics- just a warning.

Configurable outline colour, check distance, and toggle. (groundcheck.json)

Supports world languages (adapts to your game language).

Lightweight and optimised, minimal performance impact.

Compatibility:

Client-side only (no server installation required).

Works with Sodium, Embeddium, and other rendering tweaks.