BlockHighlight

BlockHighlight

Selected block coordinates can be marked client-side with custom highlights, borders, and a see-through display—all easily managed via an intuitive in-game GUI.

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2 Downloads
fabricdecorationequipmentutility
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Screenshots

Showcase
ManagerGUI
Coloring
BlockHighlight Edit Modes
BlockHighlight Logo

About this Mod

Selected block coordinates can be marked client-side with custom highlights, borders, and a see-through display—all easily managed via an intuitive in-game GUI. It's useful for marking locations, mechanical traps, or block placements.

HUD Toggle - N, Edit Mode - I, Manager GUI - M

In-Game Highlight Showcase


How It Works

Edit Mode

Press I to toggle edit mode. While active, left-clicking any block will place a colored highlight on it instead of mining it. Left-click a highlighted block again to remove it. A chat message confirms when edit mode is toggled on or off. Exit edit mode with I to resume normal gameplay — your highlights stay visible.

Edit Mode Text Showcase

Manager GUI

Settings and Marker List Showcase

Press M to open the Marker Manager, a split-panel in-game screen where you can view and manage all your highlighted blocks.

  • Marker list (left panel) — Browse all saved markers. Each entry shows the block's coordinates, dimension, color swatch, and optional name. You can search, scroll, rename, recolor, toggle see-through X-Ray mode, switch between filled box or wireframe Outlines, hide/show, edit coordinates, or delete any marker.
  • Settings (right panel) — Change the default highlight color for new markers, adjust background blur strength, and manage your saved color presets. You can also reset all settings to defaults.

Color Picker

Color Palette and Presets Showcase

Every marker can have its own color. The color picker gives you a full HSV (Hue-Saturation-Value) selector with a hex input field for precise control. You can also save colors as presets for quick reuse across all your markers.

Persistence

All markers and settings are saved to JSON files in your Minecraft config directory. Your highlights and color presets persist across game restarts, world reloads, and server reconnects.

Dimension-Aware

Markers are tied to their dimension — Overworld, Nether, and End markers are tracked separately. Only markers in your current dimension are rendered.

Available Versions

BlockHighlight 1.1+1.21.11release
MC 1.21.11fabric
July 1, 2026

How to Install BlockHighlight on Your Server

1

Order Server

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

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

3

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

BlockHighlight 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 (1.21.11). You can switch loaders with one click in the panel.

Is BlockHighlight compatible with fabric?

BlockHighlight officially supports fabric for Minecraft 1.21.11. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with BlockHighlight – how to optimize performance?

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

Rent Modded Server

Install BlockHighlight with just one click on your server.

Recommended RAM
4 GBfrom €8/mo
Minimum 3 GB | per 8 players
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NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Unsupported

Supported Versions

1.21.11