QuantumLauncher vs Spectra Launcher
QuantumLauncher
mrmayman.github.ioSpectra Launcher
github.comSide by side
| Figure | QuantumLauncher | Spectra Launcher |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Minecraft Launchers | 8.1 (#30) | 8.6 (#10) |
| Automatic updates | Yes | Yes |
| Built-in modpack catalog | Yes | Yes |
| Downloads | Stable downloads are offered for Windows, macOS, and Linux, including platform-specific builds and Linux package options. | The latest release lists Windows x64, macOS Apple Silicon and Intel, and Linux x64 AppImage and deb downloads. |
| Instances | Instances isolate game versions so they do not clash. | Each instance keeps its own Minecraft version, mods, and worlds, and supports Vanilla, Fabric, Quilt, Forge, and NeoForge. |
| Java runtime management | Yes | Yes |
| Mod loader support | multiple | multiple |
| Modpack import | both | both |
| Purpose | QuantumLauncher is an open-source Minecraft launcher with instance management and modding features. | Spectra Launcher is a free desktop program for starting Minecraft and managing multiple installations. |
| Separate instances | Yes | Yes |
| Support | The maker directs users with issues or complaints to open an issue in the GitHub repository. | The README directs users to the Help and troubleshooting section and says crash reports can be shared with one click for help. |
Plans
In their own words
QuantumLauncher
QuantumLauncher has no write-up on Specifiction yet; its figures are above.
Spectra Launcher
Spectra Launcher is a free desktop launcher for starting Minecraft and keeping multiple installations separate. Each instance has its own Minecraft version, mods and worlds, and supports Vanilla, Fabric, Quilt, Forge and NeoForge. The launcher can browse and install mods, shaders, resource packs and modpacks from Modrinth and CurseForge, including their required dependencies. Players can sign in with Microsoft/Xbox or offline accounts; Spectra finds and installs the required Java version automatically. It also imports instances from Prism, CurseForge and the Modrinth app, and exports them as .mrpack or .zip files. Shared views collect worlds and screenshots, alongside 3D skin previews, saved skins and cape switching. Other tools include Quick Play for Minecraft 1.20+, server status with player counts and ping, live logs, crash-report sharing, optional Discord status and playtime tracking. Downloads are listed for Windows, macOS and Linux. Spectra says accounts, settings and instances stay on the user's computer, and Microsoft/Xbox passwords are not seen by the launcher.