Cactus MC Launcher vs Spectra Launcher

Cactus MC Launcher is a free desktop launcher for managing Minecraft instances, modpacks, and dedicated servers on Windows, macOS, and Linux. It supports separate instances, Java runtime management, automatic updates, and a built-in modpack catalog. The launcher works with mods, resource packs, shaders, and modpacks from Modrinth and CurseForge. Available loaders include Vanilla, Fabric, Quilt, Forge, and NeoForge. Instances can be grouped by version and loader, with custom icons and cover art. Server tools include a live console, world management, ops and whitelist controls, and one-command sharing. The interface can be customized with backgrounds, gradients, decor, a movable dock, and toggleable click sounds. Cactus MC Launcher is built with Tauri and Rust, contains no ads, and does not track users. It is made by Ladvace and released under AGPL-3.0; the download page lists version 1.5.1. The project provides a GitHub link and a Discord community link. It is not an official Minecraft product and is not associated with Mojang or Microsoft.

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.