Physics Swapping
Bouncy jump physics when moving items in your inventory
- Loaders
- Fabric
- Downloads on Modrinth
- 5.2K
- Followers on Modrinth
- 30
- versions
- 18
- Updated
- October 8, 2026Oct 8
- Published
- in 2026
At a glance
Install in the game only; not needed on the server
Physics Swapping replaces the boring vanilla item movement with dynamic, physics-based jumps. Every time you move an item between slots, it bounces, rotates, and behaves differently — no two swaps look the same.
- Bouncy physics — items jump with gravity and bounce decay.
- Randomized parameters — each swap has unique height, bounce count, angle, and duration.
- Smooth rotation — items tilt left and right during the jump.
- Fully configurable — tweak everything in the config menu.
- Client-side only — works on any server.
How It Works
You can adjust the following parameters in the config menu (Mod Menu required):
| Setting | Description |
|---|---|
| Duration | How long the jump animation lasts. |
| Bounces | Number of bounces before landing. |
| Height | Maximum jump height. |
| Angle | Maximum rotation angle during the jump. |
| Size | Scale of the item during the animation. |
| Squash & Stretch | Squash and stretch of the item in flight. |
All settings are live — no need to restart the game.
FAQ
How to install Physics Swapping?
Install Fabric for your Minecraft version, download Physics Swapping for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does Physics Swapping support?
Physics Swapping has builds for Minecraft 1.20–1.20.1, 1.21–1.21.1, 1.21.11–26.3.
Is Physics Swapping needed on the server?
Client only — no need to install it on the server
