ModsJava
FX's Rail Optimization
Java mod listed for Minecraft 1.19. Downloads from the MC Java Mods app on Android.
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
A simple mod that makes powered/activator rails turning on/off up to 4x faster
Make sure to report any bugs here!
My other optimization/bugfix mods:
- MoreCulling - Changes how culling is handled to improve performance
- MemoryLeakFix - Fixes multiple memory leaks for both the client and server
- Carpet-Fixes - Largest Server-Side bug fixing mod
- Blanket - Client-side tweaks/fixes
More Info
Feel free to contribute to the project. Make sure to star the project to help out!
I'm also fine if you use this mod in your modpacks, just make sure to mention it.
However, I don't allow clients or other projects to merge this mod without permission, if you would like to use this mod in your client or another project please contact me.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.19.3, 1.19.4
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Ships as RailOptimization-1.1+1.19.4-forge.jar — drop this file into the mods folder
- Download size: 37 KB
- Download link checked 10 Oct 2026 — working
These come from our own check of the pack file, not from the source page.