Onyx Client

A straightforward Minecraft launcher for playing, debugging and testing mods.

Download for Windows Download source (GPL-3.0)

Windows 10 / 11 · Minecraft Java account required to play

Active launchers: —

What it does

  • Manage Minecraft versions, custom instances and modpacks.
  • Add, enable and disable mods and resource packs.
  • Choose Java, memory and JVM arguments for each instance.
  • Inspect live logs, saved logs and diagnostic tools.
  • Use twelve themes, custom accents and signed automatic updates.

Custom modifications are allowed by the launcher. Their compatibility and server permission depend on the mod and server.

Latest release: 2.9.11

Default-on Add Onyx Client + dependencies in normal instance creation and compatible modpack imports. Opt out before creating. Preserves pack identity, reuses shared libraries and resumes after repair. Browser sign-in and existing game modules are retained.

Download installer

Revealed SMP

Server: play.revealedsmp.com

Website account: sign in or register

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