Onyx Launcher is an MIT-licensed desktop Minecraft launcher for Windows and Linux with isolated instances, Modrinth integration, automatic Java, crash diagnostics, and safer world backups.
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Verified facts
- Latest release
- 1.6.3 · July 30, 2026
- Platforms
- Windows 10/11 and modern x64 Linux
- License
- MIT
- Technology
- Electron, React, TypeScript
- Content source
- Modrinth
- Authentication
- Microsoft device-code flow
- Game loaders
- Vanilla, Fabric, Quilt, Forge, NeoForge
- Managed Java
- Eclipse Temurin 8, 17, and 21
Onyx is independent software. It does not distribute Minecraft, bypass licensing, or claim affiliation with Microsoft, Mojang Studios, or Modrinth.
COPY-READY SUMMARY
Describe it accurately
Onyx Launcher is a Windows and Linux desktop app that keeps Minecraft instances isolated and gives players built-in Modrinth discovery, automatic Eclipse Temurin management, controlled mod bisecting, performance diagnostics, world snapshots, and portable backups. Its source and release workflows are public, and every release includes SHA-256 checksums.
ENGLISH INTERFACE
Screenshots
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