Block Outline Customizer
Modby Anomz
A mod that let you customize the outline of blocks when you hover them.
Type
Mod
CurseForge Downloads
23,186
CurseForge ID
1416962
Last Updated
Jun 29, 2026
Description
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
- Custom RGB Colors: Set any color you want (0-255 for Red, Green, Blue)
- RGB Mode: Color shifting RGB style with adjustable speed
Outline Customization
- Adjustable Opacity: From fully transparent to completely opaque (0.0 - 1.0)
- Variable Width: Thicker or thinner outlines (1.0 - 10.0)*
- Smooth Animations: Buttery smooth rainbow cycling
Easy Configuration
- In-Game GUI: Press a keybind to open settings (no file editing!)
- Real-Time Updates: Changes apply immediately
- Persistent Settings: Your preferences are saved automatically
How to Use
- Install the mod (requires NeoForge or Fabric)
- Launch Minecraft and load into a world
- Press O (default keybind) to open the settings menu
- Customize your outline colors, opacity, and width
- Enable RGB mode for RGB colors!
- 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:
- NeoForge or Fabric (for your Minecraft version)
- Minecraft 1.21.1 - 1.21.11 or 26.1.X | Minecraft 1.20.1 for Forge
- The .jar file
Steps:
- Download and install NeoForge or Fabric
- Download the mod for your Minecraft version
- Place the .jar file in your mods folder
- Launch Minecraft with the correct profile
- Enjoy!
Keybinds
- O - Open Block Outline Settings GUI
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:
- ⭐ Leave a rating on CurseForge
- Share with friends
- Report bugs to help improve it
Screenshots
Similar Mods
Create: Configurable Crushing Wheel
Take control of your Create automation! This mod lets you choose which recipe your machines use when multiple addons cre...
Snow's Bosses: Mechasent
This mod adds a new boss to raids — the Mechasent. It appears during the final two waves of a raid.
Shifty Hotbar
A utility mod that implements the hotbar shifting ability, inspired by Stardew Valley.
AgriTech
Farming automation mod. Planters and raised beds grow your crops and trees for you.
Poke Clothing
Cosplay as your favorite Pokémon characters with craftable anime outfits!
Passive Aggression
Turns all Passive mobs into Aggressive mobs when hit.