FLauncher

github.com

What it is

FLauncher is a custom Minecraft launcher for managing multiple installations, accounts and modpacks.

From github.com's own pages, read 15 Oct 2026.

FreeFree software under GPL-3.0-onlyFree
Free softwarefree software · multiple installations · accounts · modpacks · Modrinth and CurseForge downloadsFree

As github.com lists them, read 11 Oct 2026.

Data plate

Price: Free to use
Free plan: Yes
Free trial: Not stated
Runs on: Linux, macOS, Windows
Open source: Yes
Website: github.com
Account locking: A bound instance refuses to launch when its designated account is unavailable or invalid.
Account privacy: Release notes describe per-instance account locking, proxies, language overrides, a Linkability Report, and stream-safe username masking.
Automatic updates: Installed MSVC builds from version 12.0.2 onward are stated to auto-update.
Built-in modpack catalog: Yes
CurseForge integration: The launcher can install mods and modpacks from CurseForge.
Discrete GPU setting: Version 12.2.0 can register the exact javaw.exe used by an instance as a high-performance Windows GPU application.
Documentation depth: The project directs builders to Prism Launcher's upstream development documentation rather than maintaining a separate FLauncher build manual.
Downloads: The 12.0.4 release notes give a Windows installer filename and say installed MSVC copies from version 12.0.2 onward auto-update.
Checked: 15 Oct 2026

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