filament
Modby tomalbrc
Data driven Blocks, Items and Decorations for Fabric based servers. No client mods required!
Type
Mod
CurseForge Downloads
164,246
CurseForge ID
Modrinth Downloads
234,984
Modrinth ID
Last Updated
Oct 24, 2026
Description
Filament: Custom Content Adder for Fabric Servers
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 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 and 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!
Mods using filament
These mods & datapacks demonstrate filament's capabilities:
- Hat Club by MJRamon
- Backported Shelves by palm1
- Planked Chests by palm1
- Toms Server Additions: Decorations & Furniture
- Toms Server Additions: Stone!
- Toms Server Additions: Planks!
- Toms Server Additions: Concrete!
Archived:
Credits
This project includes code from 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
Game Versions
Recommended Gear
AffiliateHardware and extras that pair well with this mod.
LEGO Minecraft Set
Official sets that translate the building side of the game off-screen.
Minecraft Enderman Character Plush
Enderman plush toys, and a reliable gift for a younger player.
Mini PC for Self-Hosting
A low-power box that can sit in a cupboard and run a modded server around the clock.
As an Amazon Associate I earn from qualifying purchases.
Screenshots
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