ModsJava
Slash Fly
Java mod listed for Minecraft 1.21. 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.
SlashFly
A Minecraft mod that adds a simple /fly command set to singleplayer and multiplayer alike.
Key Features
1.3.2
- Ensure consistent flight behavior between game mode changes
1.3.1
- Allow flight in creative mode even without slashfly permission in luckperms
1.3.0
- Add support for luckperms
/fly-slashfly.command.fly/fly <speed>-slashfly.command.fly.speed
1.2.0
- Prevent losing active flying when switching game modes
1.1.1
- Fixed Fabric above ground mining speed issue
1.1.0
- Being underwater while flying no longer has a penalty to mining speed
1.0.0
- Initial Release
/flycommand set added- Flight toggle persists between logins and deaths
- Allow normal block breaking speed while flying
Usage
/fly - Toggle flying
/fly <speed> - Change flying speed from 0.1 to 100.0 (Default: 0.5)Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.11, 1.21.10, 1.21.8
- 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 CurseForge — 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 slashfly-forge-26.1.0-1.1.1.jar — drop this file into the mods folder
- Download size: 63 KB
- Download link checked 2 Oct 2026 — working
These come from our own check of the pack file, not from the source page.