3.11 Onyx Launcher release workflow Portable Application Description metadata for Onyx Launcher. lonestill https://lonestill.github.io/ lonestill admin@lonestill.uk lonestill admin@lonestill.uk admin@lonestill.uk admin@lonestill.uk Onyx Launcher 1.6.3 7 30 2026 0.00 USD Freeware Major Update Install and Uninstall Windows 11,Windows 10,Linux,Linux Open Source English Added launch diagnostics, performance recording, automatic Java provisioning, Crash Bisect, world snapshots, safer restore and delete flows, Modrinth improvements, and Windows/Linux release automation. Games Games & Entertainment::Other Games,Minecraft,Utilities Windows 10 or 11 x64, or a modern x64 Linux distribution; internet access; a licensed Microsoft account for the full Minecraft: Java Edition experience. 103763860 101332 98.96 N Minecraft launcher,open source launcher,Modrinth,Fabric,Forge,NeoForge,Quilt,AppImage,Windows,Linux Desktop Minecraft launcher for Windows/Linux Open-source Minecraft launcher with isolated instances, Modrinth, and Java. Onyx Launcher is an open-source desktop Minecraft launcher for Windows and Linux. It keeps instances isolated, installs Modrinth modpacks and mods, manages Java automatically, diagnoses crashes, and protects worlds with backups. Onyx Launcher is an MIT-licensed desktop Minecraft launcher for Windows and Linux. Create isolated instances, browse and install Modrinth content, use Vanilla, Fabric, Quilt, Forge, or NeoForge, and let Onyx select Eclipse Temurin Java 8, 17, or 21. Built-in logs, Crash Bisect, performance recordings, snapshots, and portable backups help keep modded Minecraft understandable and recoverable. Onyx Launcher is an open-source desktop launcher for Minecraft: Java Edition on Windows and Linux. Each instance keeps its own worlds, mods, loader, Java runtime, memory profile, and launch settings. Integrated Modrinth discovery supports modpacks and individual mods with compatibility information and update previews. Onyx can select and install Eclipse Temurin Java 8, 17, or 21 for the chosen Minecraft version and supports Vanilla, Fabric, Quilt, Forge, and NeoForge. When a launch fails, built-in diagnostics preserve actionable logs; Crash Bisect can help isolate a problematic mod, and performance recordings make resource issues easier to inspect. World snapshots, safe restoration, operating-system trash, and portable backups reduce the risk of losing local data. Authentication uses Microsoft's device-code flow, so Onyx never receives the account password. A licensed Microsoft account is required for the full Minecraft: Java Edition experience; the official demo can run without an account. The app is MIT-licensed, has no ads or telemetry, and publishes source code, build workflows, release checksums, Windows installers, portable Windows builds, Linux AppImages, and Linux tar archives. https://lonestill.github.io/ https://lonestill.github.io/home.png https://lonestill.github.io/icon.png https://lonestill.github.io/pad/onyx-launcher.xml https://github.com/lonestill/onyx-launcher/releases/download/v1.6.3/Onyx.Launcher.Setup.1.6.3.exe https://github.com/lonestill/onyx-launcher/releases/download/v1.6.3/Onyx.Launcher.1.6.3.exe https://github.com/lonestill/onyx-launcher/releases/download/v1.6.3/Onyx-Launcher-1.6.3-x86_64.AppImage https://github.com/lonestill/onyx-launcher/releases/download/v1.6.3/Onyx-Launcher-1.6.3-linux-x64.tar.gz Onyx Launcher is distributed under the MIT License. Redistribution is permitted when the license is preserved and the software and author are not misrepresented. Linking to official release files is preferred. https://github.com/lonestill/onyx-launcher/blob/master/LICENSE