v1.0 — for Minecraft 1.21.1

Minecraft,
supercharged.

Radium is a free, lightweight client focused on raw FPS, a clean customizable HUD, and a full suite of modules. One file. Drop it in. Play.

Download for free See features ↓

Free forever · Fabric mod · no account needed

Built different.

Everything packed into one tiny file — no launcher bloat, no background services.

FPS Boost

Aggressive render optimizations squeeze every frame out of your rig.

Custom HUD

FPS counter, coordinates, armor status — arrange your overlay exactly how you like it.

Fully Configurable

Every module has its own settings. Toggle anything, anytime, in-game.

Lightweight

One small file. No launcher bloat, no background services, no nonsense.

Custom Keybinds

Bind every module to any key and switch your setup on the fly.

Free Forever

No accounts, no premium tiers, no ads. Just play.

A module for everything.

Open the menu with Right Shift and toggle anything you need, organized into clean categories.

Combat

  • KillAura
  • Aimbot
  • AutoCrystal
  • Criticals
  • AutoTotem
  • Reach
  • HitBox
  • Velocity

Visual

  • PlayerESP
  • CrystalESP
  • FullBright
  • Nametags
  • Tracers
  • HUD
  • NoRender
  • Animations

Misc

  • AutoReconnect
  • Freecam
  • FastEat
  • AutoRespawn
  • Scaffold
  • PacketControl
  • NameProtect
  • FakePlayer

Boost

  • NoFall
  • AntiAFK
  • AutoSprint
  • NoSlow
  • Jesus
  • Timer
  • FastPlace
  • Sprint

Client

  • ClickGUI
  • Config
  • Discord
  • Friends
  • HUD Editor
  • Radium
  • Themes
  • Keybinds

...and more

New modules land in every update. Hit the search bar in-game to find any of them instantly.

Get Radium.

Radium Client v1.0 · Minecraft 1.21.1 · Radium-Client-1.21.1.jar

Download .jar

Requires Minecraft: Java Edition 1.21.1 + Fabric API.

  1. 1Install Fabric API — Radium needs it to run.
  2. 2Download the Radium .jar file above.
  3. 3Drop both into your mods folder.
  4. 4Launch Minecraft. Press Right Shift in-game to open the Radium menu.

Questions, answered.

Is Radium really free?

Yes. Completely free, no account, no premium tier, no ads — and it stays that way.

Which Minecraft version is supported?

Radium is built for Minecraft: Java Edition 1.21.1.

How do I install it?

Install Fabric API first, then drop both it and the Radium .jar into your mods folder (%appdata%\.minecraft\mods) and start the game. That's it.

Do I need Fabric API?

Yes. Radium is a Fabric mod, so you need the Fabric loader and Fabric API installed. Without it, the game won't load Radium.

Can I suggest features?

Absolutely — a community space for suggestions and bug reports is coming soon.

Is this an official Minecraft product?

No. Radium is an independent project and is not affiliated with Mojang Studios or Microsoft.