Slothy's Tree
by IlySlothy
Slothy's Tree is a client-side Fabric library that lets players browse, apply and build custom resource packs from inside the game.
What it does
Players open a pack browser in the game to find, apply and build custom Minecraft resource packs without leaving the client. A pack builder and OptiFine CIT support are included, and a fallback for CIT assets is adapted from CIT Resewn under the MIT License. Only the client needs the mod, so servers can run without installing it.
The mod ships a default catalog of packs that the author created and distributes for use with the mod. Catalog browsing can be done through a GitHub Pages site and optional fetches, and the pack browser can be toggled on and off. Public links for the source code and the issue tracker are available, and Fabric API is required.
Slothy's Tree is published for Fabric only, with 13 release versions across 1.20 – 1.21.11. The latest Fabric file targets 1.21.11 and was released on 2026-06-04. The mod code is open source under the MIT License, and the project was first published on 2026-05-26.
Key features
Pack browser
A client-side browser lists packs from the catalog and applies them with a click, while the game keeps running.
Pack building
A built-in builder lets players assemble resource packs in the client, with OptiFine CIT support for custom item textures.
Pack voting
Players can vote on packs; votes are tied to a local UUID and pack ID, and a presence heartbeat expires after 15 minutes.
Community uploads
Players can upload their own packs, which stay private until a moderator approves them and appear in the public catalog.
Upload dashboard
An uploads dashboard shows the submission status of each pack, and upload metadata is kept until the moderation decision is made.
Gallery
Compatibility
Latest build for each game version and loader.
1.21.x6 of 6 versions with builds
1.20.x7 of 7 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Who it’s for: Players who use custom resource packs and want to find and apply them from inside the game, and players who build packs with CIT item textures.
How it compares
CitFancy is a Fabric client-side mod for 1.21.3 – 26.3 under All rights reserved, so it is not open source. CIT Manager is a Fabric client-side mod for 1.20.1 – 1.21.1, also not open source. Variants-CIT is a Fabric client-side mod for 1.21 – 26.3 released under the European Union Public License 1.2, which makes it open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Slothy's Tree | Fabric | 1.20 – 1.21.11 | Client-side only | 2026-06-04 |
| CitFancy | Fabric | 1.21.3 – 26.3 | Client-side only | 2026-09-19 |
| CIT Manager | Fabric | 1.20.1 – 1.21.1 | Client-side only | 2026-05-08 |
| Variants-CIT | Fabric | 1.21 – 26.3 | Client-side only | 2026-10-13 |
Questions
Does Slothy's Tree need Fabric API?
Does Slothy's Tree have to be installed on the server?
Are community packs published without moderation?
Which game versions does Slothy's Tree support?
In the catalog
Slothy's Tree is one of 3,514 Library mods on ModsFinder, and one of 2,348 Library mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
Slothy's Tree is a client-side Fabric mod for browsing, applying, and building custom Minecraft resource packs — without leaving the game. Client-side only — do not install on a server.
Official listing
- Modrinth page
- modrinth.com/mod/slothys-tree
- Owner
- IlySlothy
- Published
- 2026-05-26
- Updated on Modrinth
- 2026-06-04
- Facts verified
- 2026-10-15