An Open Source Minecraft launcher with the ability to manage multiple instances, accounts and mods. Focused on user freedom and free redistributability.
Modpack management : Install and launch modpacks easily, while keeping them clean. No longer do you need to manually install them, and updating feature is coming soon. PolyMC can do that for you, without installing tons of separate launchers.
Download & Update: Mods Are you sick of finding and adding that one mod you need? PolyMC is able to download & update individual mods from outside of modpacks using Modrinth and CurseForge.
Minecraft instance management: Did your settings ever reset after launching an older version? Did you ever accidentally break a world because you opened it in an old version? Are you tired of manually switching mods for different versions, installing modloaders? PolyMC can help. Each Minecraft instance has its own folder, with separate mods, resourcepacks and other things.
Lightweight & Customizable: You don't need an embedded web browser for a game launcher. PolyMC uses the Qt toolkit, which requires little system resources. PolyMC also supports customizing the instance window and theme.