Physics Swapping
by Ender_Fake
Physics Swapping replaces the plain movement of items between inventory slots with bouncing, tilting jumps that follow physics-style rules.
What it does
When an item is moved between slots, by a click, a Shift+click or a drag, it no longer snaps to the new position. It jumps, bounces and rotates before settling where it lands. Each swap can look different, because the height, bounce count, angle and duration are randomized per move, and the bounce decays with gravity until the item comes to rest.
The behavior is client-side only, so a server does not need the mod and players join without installing anything on the server side. The mod is published for Fabric alone, with Mod Menu needed to reach its configuration screen, where the parameters can be adjusted. Settings apply live, so the game does not need a restart after a change. Files cover 1.20 – 26.3 across ten release versions, and the code is open source under the MIT License.
Key features
Bouncy item movement
Items jump between inventory slots with gravity and decaying bounces instead of appearing in the new slot at once.
Randomized jumps
Height, bounce count, angle and duration are drawn at random for each move, so no two swaps look the same.
Tilting rotation
Before an item settles into its target slot, it tilts left and right while it jumps.
Full configuration menu
A config menu lets the player tune the jump parameters, and changes take effect without restarting the game.
Gallery
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x3 of 3 versions with builds
1.20.x2 of 2 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Attribute Swap Indicator is a Fabric client-side mod, open source under the GNU General Public License v3.0 only, for 1.21.11 – 26.2, and it shows attribute swaps rather than animating item movement. TabSwap is also client-side only and open source under the MIT License, covering 1.21.9 – 26.3, but it changes how tabs are switched. Bouncy Blocks is the one alternative that runs on client and server, and it is not open source, with a single file for 1.20.4.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Physics Swapping | Fabric | 1.20 – 26.3 | Client-side only | 2026-10-07 |
| Attribute Swap Indicator | Fabric | 1.21.11 – 26.2 | Client-side only | 2026-06-19 |
| TabSwap | Fabric | 1.21.9 – 26.3 | Client-side only | 2026-09-16 |
| Bouncy Blocks | Fabric | 1.20.4 | Client and server | 2024-03-30 |
Questions
Does Physics Swapping need Mod Menu?
Does the server need Physics Swapping?
Do configuration changes need a restart?
In the catalog
Physics Swapping is one of 4,058 Storage mods on ModsFinder, and one of 2,474 Storage mods for Fabric. 8,071 mods support Minecraft 26.3.
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What the author says
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. When you move an item in your inventory (Shift+click or drag), it doesn't just teleport to the new slot —…
Official listing
- Modrinth page
- modrinth.com/mod/physics-swapping
- Owner
- Ender_Fake
- Published
- 2026-06-25
- Updated on Modrinth
- 2026-10-07
- Facts verified
- 2026-10-15