Hopper Speed Simulator
With Hopper Speed Simulator, server owners can change how fast hoppers move items using a single command, hopperspeed.
What it does
The mod adds a hopperspeed command that changes the transfer speed of hoppers. It is a server-side mod: only the server runs it, and players join without installing anything. Lithium is an optional dependency that can be installed alongside it.
Builds exist for Fabric, Forge, NeoForge and Quilt, and the same Fabric and Quilt files cover 1.19 – 26.3 through the 27 release versions listed, with the latest file mc26.2-2.0.1 for 26.3, published 2026-09-07. The mod is released under the MIT License and is open source, with public source code and an issue tracker. It was first published on 2022-06-25.
Server platforms Paper, Spigot, Purpur, Folia and Sponge are also supported. Installing it on a Paper or Spigot server means running the Ignite Mixin loader jar alongside the server jar, and the mod is placed in the mods folder before the server restarts.
Key features
Hopperspeed command
A single command, hopperspeed, changes the transfer speed of hoppers on the server.
Server-side operation
Players need no installation, because all changes happen on the server side.
Ignite Mixin on Paper and Spigot
Servers running Paper, Spigot, Purpur, Folia or Sponge load the mod through the Ignite Mixin loader.
Gallery
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x10 of 10 versions with builds
1.20.x7 of 7 versions with builds
1.19.x5 of 5 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.
Optional 1
Use cases
Testing item throughput
Server owners can change hopper speed to see how item flow behaves in automated builds.
Pacing a modded server
A faster or slower transfer rate can be set for a whole server with one command.
Who it’s for: Server owners who run Fabric, Forge, NeoForge, Quilt or one of the supported server platforms, and who want to adjust hopper transfer speed.
How it compares
Craft Sponge is open source under the MIT License, supports 1.16 – 26.3 on Fabric, Forge, NeoForge and Quilt, and is server required with client optional. Hoppers from Barrels is server required with client optional, covers 1.20 – 1.20.4 on the same four loaders, and is not open source, licensed All rights reserved. Dripstone On Hoppers is a Fabric-only mod for 1.21.4 – 1.21.11 that runs on client and server.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Hopper Speed Simulator | Fabric, Forge, NeoForge and Quilt | 1.19 – 26.3 | Server-side only | 2026-09-07 |
| Craft Sponge | Fabric, Forge, NeoForge and Quilt | 1.16 – 26.3 | Server required, client optional | 2026-10-14 |
| Hoppers from Barrels | Fabric, Forge, NeoForge and Quilt | 1.20 – 1.20.4 | Server required, client optional | 2024-08-25 |
| Dripstone On Hoppers | Fabric | 1.21.4 – 1.21.11 | Client and server | 2025-03-16 |
Questions
Does the server need Lithium?
How is the mod installed on Paper or Spigot?
Do players need to install Hopper Speed Simulator?
In the catalog
Hopper Speed Simulator is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 8,071 mods support Minecraft 26.3.
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What the author says
This mod allows you to easily change the speed of hoppers with the simple command /hopperspeed Compatible with Lithium, FabricAutoCrafter, and many other mods
Official listing
- Modrinth page
- modrinth.com/mod/hopperspeedsim
- Owner
- Tater Certified
- Published
- 2022-06-25
- Updated on Modrinth
- 2026-09-07
- Facts verified
- 2026-10-15