Fast, lightweight and easy to use Minecraft launcher. Natively available for Windows and Linux.
Platforms
- Windows
- Linux


Apps similar to Catalystmc include Prism Launcher, which is free and open source. Other options are PineconeMC (formerly ElyPrism Launcher), Freesm Launcher, Shard Launcher and Shattered Prism. There's no shortage of Minecraft Launchers like Catalystmc, with more than 25 alternatives for Windows, Linux, Mac, the web and Android.
Fast, lightweight and easy to use Minecraft launcher. Natively available for Windows and Linux.


Sakki's Client Essentials are plugins for Minecraft Servers and Client's. It eliminates the problems with hacked client's and gives server administrators control by restricting clients to use whitelisted plugins and mods and ends unfairness.
HMCL is a cross-platform Minecraft launcher which supports Mod Management, Game Customizing, Auto Installing (Forge, Fabric, Quilt, LiteLoader and OptiFine), Modpack Creating, UI Customization, and more.




UltimMC is a custom launcher for Minecraft which allows you to manage multiple instances and use offline ("cracked") accounts while keeping as close as possible to the original.


A lightweight rust native Minecraft Java Edition launcher with isolated instances, offline profiles, automatic Java setup, and one-click Modrinth mods.





Open-source desktop Minecraft launcher for Windows and Linux with isolated instances, Modrinth modpacks, automatic Java, crash diagnostics, and safe backups.



Pandora is a modern Minecraft launcher that balances ease-of-use with powerful instance management features.



Free open-source Minecraft launcher: mods and modpacks, own skin server, server-free P2P multiplayer, voice chat, built-in VPN. Windows and Linux.




Osmium is a quality-of-life mod for Fabric 1.17 and above that adds features similar to PVP clients like Badlion Client and Lunar Client.