CoolClient
by NN_user
CoolClient is a Fabric client utility for PvP play, with block outline, hitbox, hit damage color and crosshair options.
What it does
CoolClient covers combat feedback on the player's own screen. It lets a player adjust the block outline and hitbox precision, set colors for hit damage, and build a custom crosshair, alongside a small set of other client utilities. Only the client needs it, so servers run without it and players join without installing anything on their side. Fabric API is required, and the mod is published for 1.21.1 with the latest file 1.1, dated 2026-07-08. The code is not open source and is released under All rights reserved.
Key features
Block outline tuning
The outline drawn around targeted blocks can be adjusted, so its precision and look suit the player.
Hit damage colors
The colors used to show damage dealt during a fight can be changed to fit the player's preference.
Custom crosshair
A crosshair can be shaped and styled from within the mod, instead of using the default one.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
How it compares
Crosshair Attack Indicator is a Fabric client mod for 1.21.8 – 1.21.11, under All rights reserved and not open source. Custom Crosshair is another Fabric client option, for 1.21.4 only, also under All rights reserved. CoolClient targets only 1.21.1.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| CoolClient | Fabric | 1.21.1 | Client-side only | 2026-07-08 |
| Crosshair Attack Indicator | Fabric | 1.21.8 – 1.21.11 | Client-side only | 2026-01-22 |
| Custom Crosshair | Fabric | 1.21.4 | Client-side only | 2026-08-16 |
Questions
Does CoolClient need Fabric API?
Does a server need CoolClient installed?
In the catalog
CoolClient is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from NN_user
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What the author says
Take full control of your PvP experience with this feature-packed Minecraft client. Customize your visual feedback with BlockOutline, fine-tune Hitbox precision, personalize Hit Damage Colors, and craft the perfect Crosshair — plus a suite of utilities to enhance your gameplay. Open menu - Z
Official listing
- Modrinth page
- modrinth.com/mod/coolclient
- Owner
- NN_user
- Published
- 2026-06-26
- Updated on Modrinth
- 2026-07-08
- Facts verified
- 2026-10-15
