Fabric instances, Modrinth built right in, direct friends chat, and a full in-game mod menu. Everything in one place.
No upsells. No account required to play. Just a launcher that does what you want.
Run Fabric 1.21.4 for modded and vanilla 1.21.11 for servers at the same time. Every instance is fully isolated — separate mods, worlds, configs.
Search and install mods directly from Modrinth without ever leaving Justice. 50,000+ Fabric mods and modpacks, one click to install into any instance.
Create a Justice account, add friends, see who's online or currently in-game, and message them directly from the launcher. No Discord needed.
Right Shift opens the Justice overlay in-game. Toggle hitboxes, freelook, CPS counter, keystrokes, waypoints — no alt-tabbing.
Justice downloads and manages Java automatically. The right version, every time. You don't have to touch a thing.
A curated set of performance and quality-of-life mods bundled directly into Justice — installed automatically into every Fabric instance. No hunting for Sodium, Lithium, or Iris. They'll just be there.
Justice supports every Minecraft 1.21.x release with both Fabric and Vanilla. More loader support is on the roadmap.
Join Justice to add friends and chat from the launcher.