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Block Outline Customizer
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Block Outline Customizer

by Anomz · on CurseForge

A mod that let you customize the outline of blocks when you hover them. Free Minecraft Java mod for 1.21.11, 1.21.1, 1.20.1.

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Minecraft version

⬇ Download for 1.21.11 · Fabric⬇ Download for 1.21.10 · Fabric⬇ Download for 1.21.9 · Fabric⬇ Download for 1.21.8 · Fabric⬇ Download for 1.21.7 · Fabric⬇ Download for 1.21.6 · Fabric⬇ Download for 1.21.5 · Fabric⬇ Download for 1.21.4 · Fabric⬇ Download for 1.21.3 · Fabric⬇ Download for 1.21.1 · Fabric⬇ Download for 1.20.6 · Fabric⬇ Download for 1.20.1 · Fabric⬇ Download for 1.21.11 · NeoForge⬇ Download for 1.21.9–1.21.10 · NeoForge⬇ Download for 1.21.6–1.21.8 · NeoForge⬇ Download for 1.21.2–1.21.5 · NeoForge⬇ Download for 1.21.1 · NeoForge⬇ Download for 1.20.6 · NeoForge⬇ Download for 1.20.1 · Forge
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
Open in MC Java ModsGet it on Google Play →
Block Outline Customizer — screenshot 1Block Outline Customizer — screenshot 2Block Outline Customizer — screenshot 3Block Outline Customizer — screenshot 4Block Outline Customizer — screenshot 5

Block Outline Customizer

Customize your block selection outline with RGB colors, opacity, and more!

Tired of the plain black selection outline in Minecraft? Block Outline Customizer lets you personalize it with custom colors, RGB mode, adjustable transparency, and variable thickness!

Features

Full Color Control

Outline Customization

 Easy Configuration

How to Use

  1. Install the mod (requires NeoForge or Fabric)
  2. Launch Minecraft and load into a world
  3. Press U (default keybind) to open the settings menu
  4. Customize your outline colors, opacity, and width
  5. Enable RGB mode for RGB colors!
  6. Click Done - your settings are saved automatically

Change Keybind: Options → Controls → Key Binds → Block Outline Settings

Version Support

Fabric: 1.20.1, 1.20.6, 1.21.1 to 1.21.11, 26.1.X

NeoForge: 1.20.6, 1.21.1 to 1.21.11, 26.1.X

Forge: 1.20.1

Installation

Requirements:

Steps:

  1. Download and install NeoForge or Fabric
  2. Download the mod for your Minecraft version
  3. Place the .jar file in your mods folder
  4. Launch Minecraft with the correct profile
  5. Enjoy!

 

Keybinds

Keybind can be changed in Minecraft's controls menu

FAQ

Q: Does this work in multiplayer?
A: Yes! Settings are client-side only and don't affect server gameplay.

Q: Is this compatible with OptiFine/Sodium?
A: Should be compatible, but not extensively tested. Report issues if found!

Q: Can I use this in modpacks?
A: Absolutely! No permission needed, just credit is appreciated. Tested with ATM10 and works perfectly!

Q: Will you backport to older versions?
A: Currently focused on 1.21.x. May consider 1.20.x and less if there's demand.

If you enjoy this mod:

Verified by MCModsHub

These come from our own check of the pack file, not from the source page.

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