GUI Tween
by remarxk
GUI Tween adds animation effects to several parts of the game interface, including the chat window, the hotbar and the opening of container screens.
What it does
The mod plays short motion effects on interface elements: chat messages, the hotbar, item use and the opening of windows. Each effect can be turned on or off in the configuration screen, and the animations run only on the player's own display. Players who want less motion on screen can disable the whole group without removing the mod.
Developers and pack makers can add output slot animations to a specified screen with a datapack. The datapack needs a folder structure of the form data/<mod id>/window slots/<name>.json inside any named folder. The screen class name and the slot index array are read from the game, and a debug window in the configuration interface helps find them. The mod requires Fabric API and Fzzy Config. It is published for Fabric, Forge and NeoForge, with builds covering 1.20.1 – 26.3, and the code is open source under the MIT License.
Key features
Chat animation
Chat lines slide in when they appear, so new messages are easier to notice.
Hotbar animation
Changes to the selected hotbar slot move with a short transition.
Window open animation
Container and inventory screens grow into view when they open instead of appearing at once.
Item use animation
Using an item plays a brief motion on the held item in the on-screen view.
Datapack slot animations
A datapack can attach an output slot animation to a chosen screen, with the screen and slot identified from the debug window.
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 2
Use cases
Who it’s for: Players who want animated interface feedback, and pack makers who add animations to specific screens through datapacks. The effects run on the client only, so servers do not need to install the mod.
How it compares
Smooth Hover is for Fabric and NeoForge only, covers 1.21 – 26.3, is closed under All rights reserved, and runs on the client alone. Transparent Window targets Fabric alone for 1.20.1 – 26.1.2 and is open source under the MIT License, so it can be checked and modified. GUI Tween is available on all three loaders for the same client-only environment.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| GUI Tween | Fabric, Forge and NeoForge | 1.20.1 – 26.3 | Client-side only | 2026-09-22 |
| Smooth Hover | Fabric and NeoForge | 1.21 – 26.3 | Client-side only | 2026-09-23 |
| Transparent Window | Fabric | 1.20.1 – 26.1.2 | Client-side only | 2026-05-16 |
Questions
Does GUI Tween need Fabric API to run?
Does a server need GUI Tween installed?
Which versions does GUI Tween support?
Where can a datapack slot animation be placed?
In the catalog
GUI Tween is one of 12,078 Decoration mods on ModsFinder, and one of 6,982 Decoration mods for Fabric. 8,071 mods support Minecraft 26.3.
More from remarxk
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Official listing
- Modrinth page
- modrinth.com/mod/gui-tween
- Owner
- remarxk
- Published
- 2025-12-07
- Updated on Modrinth
- 2026-09-22
- Facts verified
- 2026-10-15