Fabric Mod

Fabric is a lightweight modding toolchain — Fabric Loader plus the Fabric API library — that lets a .jar file inject into the vanilla Minecraft client without rewriting the game. Compared to Forge, Fabric ships new-version support within hours instead of months. That speed is exactly why cheat clients moved to Fabric first.

Meteor Client — free, the flagship Fabric hack mod for anarchy.

Rise Client — free, open-source Fabric mod, great legit combat.

4E — paid Fabric crystal-PvP mod, popular on DonutSMP.

Argon — paid Fabric mod, DonutSMP-focused.

Krypton — paid Fabric mod tuned for DonutSMP.

Doomsday — free crystal-PvP Fabric mod.

Prestige — free Fabric utility mod.

Vape V4 and Novoline also support Fabric-style injection on top of Lunar and Feather.

1. Grab Fabric Loader from fabricmc.net for your exact Minecraft version.

2. Run the installer, pick Minecraft 1.21.x, click Install.

3. Open the Minecraft Launcher — a new fabric-loader-1.21.x profile appears.

4. Put the mod .jar in %appdata%/.minecraft/mods.

5. Launch the Fabric profile. That's it.

Most Fabric mods need the Fabric API mod alongside them. Download it from Modrinth or CurseForge and drop it in the same mods folder. Some hack clients ship a bundled build so you don't need the API — check the client's install notes.

Forge still exists and still supports 1.21, but cheat developers overwhelmingly picked Fabric. The result: virtually every hack client you'll find in 2026 is a Fabric mod. If a client claims to be Forge-only on 1.21, it's probably outdated.