Polymer Pipes
by jthkhaose
Polymer Pipes is a Fabric server-side item transport mod in which pipes move items between containers along configurable networks.
What it does
Pipes connect to up to six sides and carry items between chests, hoppers and other blocks that expose inventories through the Fabric Transfer API. Each pipe face can be set to input, output, normal or disabled, and a network routes items toward targets chosen by priority and shortest distance, with a breadth-first search that looks up to 64 hops ahead. Pipes stop items from sloshing back and forth and keep them out of furnace slots.
Pipes come in four tiers named base, iron, gold and diamond, and each higher tier raises transfer speed, the number of items moved per cycle and the filter space available. Filters use whitelist or blacklist ghost slots, and every pipe is configured through a holographic interface opened with the Pipe Wrench, which cycles the face and mode settings. Item movement is drawn as items animating through the pipe lines. Textures are generated at runtime, so the mod ships no static texture files. The mod is server-side only and needs Fabric API on Minecraft 1.21.11, the only game version it supports.
Key features
Upgradeable pipe tiers
Base, iron, gold and diamond pipes raise transfer speed, items per cycle and filter space at each step up.
Per-face controls
Each face of a pipe can be set to input, output, normal or disabled, with a priority from 0 to 9.
Ghost filters
Whitelist and blacklist filters are placed as ghost items, so the filter does not consume the item it matches.
Holographic configuration
The Pipe Wrench opens a floating configuration interface and switches pipe modes without a separate screen.
Smart routing
Items go to the target with the highest priority and, among equal priorities, the shortest path through the network.
Animated transport
Items are drawn moving through the pipe lines, so the flow of a network can be followed by sight.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Copper Item Pipes is built for Fabric, Forge, NeoForge and Quilt across 1.21.2 – 26.2, requires only the server, and is not open source under the MIT License. PipePlus is a client and server mod for Fabric on 1.16.4 – 1.21.1, open source under the Mozilla Public License 2.0. Unflavoured Pipes covers Fabric and Forge on 1.20.1 – 1.21.11 with client and server support, and is open source under the GNU Affero General Public License v3.0 only.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Polymer Pipes | Fabric | 1.21.11 | Server-side only | 2026-03-20 |
| Copper Item Pipes | Fabric, Forge, NeoForge and Quilt | 1.21.2 – 26.2 | Server required, client optional | 2026-02-23 |
| PipePlus | Fabric | 1.16.4 – 1.21.1 | Client and server | 2025-06-13 |
| Unflavoured Pipes | Fabric and Forge | 1.20.1 – 1.21.11 | Client and server | 2026-02-23 |
Questions
Does Polymer Pipes need Fabric API?
Does a player need the mod to join a server that runs it?
How do the pipe tiers differ?
In the catalog
Polymer Pipes is one of 3,932 Transportation mods on ModsFinder, and one of 2,390 Transportation mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from jthkhaose
Similar mods
What the author says
🖥️ Server-side item transport • Fabric API • Minecraft 1.21.11 📦 Move items between containers with configurable pipe networks. 🔗 Core Transport - ➕ 6-way connectable pipes - 🔌 Connects to blocks using the Fabric Transfer API
Official listing
- Modrinth page
- modrinth.com/mod/polymer-pipes
- Owner
- jthkhaose
- Published
- 2026-02-26
- Updated on Modrinth
- 2026-03-20
- Facts verified
- 2026-10-15