filament
Modby tomalbrc
Data driven Blocks, Items and Decorations for Fabric based servers. No client mods required!
Type
Mod
CurseForge Downloads
136,722
CurseForge ID
1118465
Modrinth Downloads
197,612
Modrinth ID
yANxwqSX
Last Updated
Jul 27, 2026
Description
# Filament: Custom Content Adder for Fabric Servers
[](https://tomalbrc.de/docs/filament)
[](https://modrinth.com/mod/filament)
[](https://www.curseforge.com/minecraft/mc-mods/filament)
[](https://github.com/tomalbrc/filament)
[](https://discord.gg/9X6w2kfy89)
filament simplifies adding custom content to Fabric-based Minecraft servers. It allows server owners to add new items, blocks, decorations and even mobs using JSON files—no coding required. Configure a block, item, decoration, or armor, and you're ready to go!
Clients can connect to servers using filament without installing any mods, as it relies on a resource pack, item display entities, and packet-based methods.
Decorations and other features have minimal server performance impact due to their packet-based nature.
**Use [Polymer's auto-hosting capability](https://polymer.pb4.eu/latest/user/resource-pack-hosting/) to host the resource pack—no third-party server required.**
**TLDR:** ItemsAdder/Oraxen alternative for Fabric.
## Features
- **Custom Items:** Add items with unique behaviors, including:
- Armor
- Cosmetics
- Items running commands
- Bows/Crossbows
- **Custom Blocks:** Add your own custom blocks like:
- Trapdoors
- Doors
- Crops
- Budding blocks
- **Custom Decorations:** Add furniture and decorations with configurable placement and interactions:
- Benches
- Showcases/Item-Displays
- Container
- Wearable & placeable backpacks
- **Custom Mobs:** Add your own mobs with simple goal-based AI - supports custom models too! Create:
- Animals
- Hostile mobs
- Supports custom attributes
- Control spawn chances and biomes to spawn in

## Installation
Requires [Fabric API](https://modrinth.com/mod/fabric-api) and [Polymer](https://modrinth.com/mod/polymer).
Download filament and drop the `example_datapack` into the `datapacks` folder of your server world. filament uses Polymer's resource pack generation and hosting features.
## Usage
An example datapack is available in the GitHub repo. Just drop it into your world's datapacks folder.
[Check out the documentation!](https://tomalbrc.de/projects/filament/docs)
## Mods using filament
These mods & datapacks demonstrate filament's capabilities:
- [Hat Club by MJRamon](https://modrinth.com/datapack/hat-club)
- [Backported Shelves by palm1](https://modrinth.com/datapack/backported-shelves)
- [Planked Chests by palm1](https://modrinth.com/datapack/planked-chests)
- [Toms Server Additions: Decorations & Furniture](https://modrinth.com/mod/tsa-decorations)
- [Toms Server Additions: Stone!](https://modrinth.com/mod/tsa-stone)
- [Toms Server Additions: Planks!](https://modrinth.com/mod/tsa-planks)
- [Toms Server Additions: Concrete!](https://modrinth.com/mod/tsa-concrete)
Archived:
- [Decorative Boxes by swzo](https://modrinth.com/mod/decorative-boxes)
- [Better Amethyst Polymerized by swzo](https://modrinth.com/mod/better-amethyst-polymerized)
## Credits
This project includes code from [FactoryTools](https://github.com/Patbox/FactoryTools) by Patbox, specifically the Virtual Destroy stages for decorations.
A copy of the FactoryTools LGPL3 license is included in `factorytools-license.txt`.
Compatibility
Mod Loaders
Fabric
Game Versions
1.20.1
1.20.3
1.20.4
1.20.5
1.20.6
1.21
1.21.1
24w40a
1.21.2-rc1
1.21.2-rc2
+16 more
Screenshots
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