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Experimental Feature Toggle

allows toggling experiments on existing worlds/servers with a command

Fabric
Loaders
Fabric
Downloads on Modrinth
260
Followers on Modrinth
2
versions
2
Updated
March 20, 2026Mar 20
Published
in 2026

At a glance

Runs on Fabric
For Minecraft 1.21.11
Server only — players don't need to install it
Latest version — 1.0.1 from March 20, 2026
Requires Fabric API
License MIT — free
Where it's needed
In gamenot neededOn serverrequired

Install on the server only; players don't need it

Game versions1.21.11

A small mod that allows enabling or disabling experiments in existing worlds or servers with a command

Usage

/togglefeature <feature name> <true/false>

Example

enabling minecart improvements:

/togglefeature minecart_improvements true

FAQ

How to install Experimental Feature Toggle?

Install Fabric for your Minecraft version, download Experimental Feature Toggle for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does Experimental Feature Toggle support?

Experimental Feature Toggle has builds for Minecraft 1.21.11.

Is Experimental Feature Toggle needed on the server?

Server only — players don't need to install it

License and source
MIT Licensefree to use and share with credit to the author
Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders

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