Hitboxes+
by spacenachos
Hitboxes+ is a NeoForge optimization mod that changes which entities a player can strike, by giving projectiles, explosions and fireworks their own collision rules.
What it does
Hitboxes+ replaces the single vanilla hitbox with four kinds of collision box, each reacting to a different source. The Kinetic Hitbox, Projectile Hitbox and Explosion Hitbox each respond only to a specific type of contact, while the Bounding Box keeps the regular vanilla behavior. Players can switch the hitbox display on with F3+B to see which box is in effect.
The mod is built for NeoForge 1.21.4 only, and the single 1.0.0 file is on the alpha channel. Either side can run Hitboxes+, and neither side needs it. It is released under All rights reserved and is not open source, and the issue tracker is the only public link the author provides.
Key features
Four hitbox types
Kinetic, Projectile, Explosion and Bounding boxes each apply a different collision rule to entities.
Projectile-only collision
The Projectile Hitbox responds only to projectiles, so other contact does not trigger it.
Explosion-only collision
The Explosion Hitbox toggles so that only explosions register against an entity.
Fireworks collision toggle
A dedicated toggle limits the hitboxes that collide with fireworks, separate from the other types.
Hitbox display with F3+B
Pressing F3+B shows the collision boxes in the world, so the active box can be checked in play.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Projectile-heavy combat
Servers and players who fight with arrows or thrown items can keep collisions limited to projectiles.
Explosion testing
Builders checking how explosions interact with mobs can isolate the Explosion Hitbox and see its effect.
Who it’s for: Players and server owners on NeoForge 1.21.4 who want to tune how entities are hit by projectiles, explosions and fireworks.
How it compares
SentinelLib is a NeoForge library for 1.21.1 under the GNU General Public License v3.0 only, open source, and runs on client and server. Swim Fix is open source under the GNU Lesser General Public License v3.0 only, covers Fabric and NeoForge for 1.21 – 1.21.10, and is server-side only. No More Explosions is not open source, is released under All rights reserved, covers 1.21.7 – 26.3 on Fabric, Forge, NeoForge and Quilt, and is server required with the client optional.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Hitboxes+ | NeoForge | 1.21.4 | Client or server, optional | 2025-03-21 |
| SentinelLib | NeoForge | 1.21.1 | Client and server | 2026-01-11 |
| Swim Fix | Fabric and NeoForge | 1.21 – 1.21.10 | Server-side only | 2025-11-20 |
| No More Explosions | Fabric, Forge, NeoForge and Quilt | 1.21.7 – 26.3 | Server required, client optional | 2025-09-20 |
Questions
Does Hitboxes+ need to be installed on the server?
Which loader does Hitboxes+ support?
How can players see which hitbox is active?
In the catalog
Hitboxes+ is one of 3,545 Optimization mods on ModsFinder, and one of 1,250 Optimization mods for NeoForge. 17,979 mods support Minecraft 1.21.4.
Similar mods
What the author says
It is ment to improve how hitboxes work and affect gameplay.
Official listing
- Modrinth page
- modrinth.com/mod/hitboxes-plus
- Owner
- spacenachos
- Published
- 2025-03-21
- Updated on Modrinth
- 2025-03-21
- Facts verified
- 2026-10-15