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SPECIFICTION
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Spectra Launcher

github.com

Free plan WindowsmacOSLinux
Visit github.com
Spec score 8.6 #10 of 75 in Minecraft Launchers

What it is

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.

Spec sheet

Purpose
Spectra Launcher is a free desktop program for starting Minecraft and managing multiple installations.Read 9 Oct 2026 · github.com
Free plan
YesRead 19 Sep 2026 · github.com
Privacy
The maker says Microsoft/Xbox passwords are not seen by Spectra, and accounts, settings, and instances are stored on the user's computer.Read 9 Oct 2026 · github.com
Support
The README directs users to the Help and troubleshooting section and says crash reports can be shared with one click for help.Read 9 Oct 2026 · github.com
Accounts and Java
It supports Microsoft/Xbox sign-in and offline accounts, and automatically finds and installs the required Java version.Read 9 Oct 2026 · github.com
Automatic updates
YesRead 19 Sep 2026 · github.com
Built-in modpack catalog
YesRead 19 Sep 2026 · github.com
Checksums
The release page lists SHA-256 checksums for downloadable assets.Read 9 Oct 2026 · github.com
Downloads
The latest release lists Windows x64, macOS Apple Silicon and Intel, and Linux x64 AppImage and deb downloads.Read 9 Oct 2026 · github.com
Extras
Features 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.Read 9 Oct 2026 · github.com
Import and export
Users can import instances from Prism, CurseForge, and the Modrinth app, and export instances as .mrpack or .zip files.Read 9 Oct 2026 · github.com
Instances
Each instance keeps its own Minecraft version, mods, and worlds, and supports Vanilla, Fabric, Quilt, Forge, and NeoForge.Read 9 Oct 2026 · github.com
Java runtime management
YesRead 19 Sep 2026 · github.com
Library
The launcher brings worlds and screenshots from instances into shared views and provides 3D skin previews, saved skins, and cape switching.Read 9 Oct 2026 · github.com
Mod loader support
multipleRead 19 Sep 2026 · github.com
Modpack import
bothRead 19 Sep 2026 · github.com
Mods and packs
It browses and installs mods, shaders, resource packs, and modpacks from Modrinth and CurseForge, including required dependencies.Read 9 Oct 2026 · github.com
Optional data sharing
Discord status and playtime tracking are off by default, and crash reports are sent only when users choose to share them.Read 9 Oct 2026 · github.com
Security caveat
The README says the app is not yet code-signed and provides instructions for Windows SmartScreen and macOS certificate warnings.Read 9 Oct 2026 · github.com
Separate instances
YesRead 19 Sep 2026 · github.com

Plans and prices

Spectra Launcher Free Free program for your computer Read 9 Oct 2026 · github.com

Every Spectra Launcher plan and price →

Strong points and limits

Strong points

  • Free program for your computer.
  • Instances keep versions, mods and worlds separate.
  • Installs packs from Modrinth and CurseForge.
  • Automatically finds and installs required Java.
  • Imports and exports instances.

Limits

  • The app is not yet code-signed.
  • Discord status and playtime tracking are off by default.
  • Crash reports are shared only when users choose.

Who it suits

It suits Minecraft players who want to keep modded and vanilla installations separate, manage packs and Java, or move instances between launchers. It is available for Linux, macOS and Windows.

Verdict

Spectra Launcher brings instance management, modpack installation and Java setup into one free Minecraft launcher. Its README warns that the app is not yet code-signed and provides guidance for Windows SmartScreen and macOS certificate warnings.

Where Specifiction places it

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