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Tech riderRev. 11 Oct 2026

FLauncher

Ch 377.4of 74Minecraft Launchers
  1. 1Runs onMac, Windows
  2. 2CostsFree plan
  3. 3Separate instancesYes
  4. 4Modpack importcatalog
  5. 5Java runtime managementYes
  6. 6Built-in modpack catalogYes
  7. 7Automatic updatesYes
7 lines stated Written from the maker's own pages: github.com
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The FLauncher homepage

Overview

FLauncher is ranked #37 of 74 in Minecraft launchers on Specifiction. It runs on macOS, Windows. There is a free plan.

FLauncher plans and pricing

All plans
Free Free Free software under GPL-3.0-only github.com · 11 Oct 2026

Compared on Minecraft launchers

Free plan
Yesgithub.com
Separate instances
Yesgithub.com
Modpack import
cataloggithub.com
Java runtime management
Yesgithub.com
Built-in modpack catalog
Yesgithub.com
Automatic updates
Yesgithub.com

Facts

Purpose
FLauncher is a custom Minecraft launcher for managing multiple installations, accounts, and modpacks.github.com · 11 Oct 2026
Mod sources
It can install modpacks and mods from Modrinth and CurseForge.github.com · 11 Oct 2026
Instance isolation
Each instance is kept in its own folder, and users can choose a Java version per instance.github.com · 11 Oct 2026
Upstream
FLauncher is a rebranded and extended fork of Prism Launcher, which descended from PolyMC and MultiMC.github.com · 11 Oct 2026
Windows optimization
The release notes describe an optional setting that registers the instance's javaw.exe with Windows as a high-performance GPU app.github.com · 11 Oct 2026
Performance settings
Optional performance features include automatically optimized JVM flags, automatic memory sizing, and game process priority.github.com · 11 Oct 2026
Account privacy
Release notes describe per-instance account locking, proxies, language overrides, a Linkability Report, and stream-safe username masking.github.com · 11 Oct 2026
Proxy behavior
For in-game server connection routing, the release notes say a proxy mod uses the FLAUNCHER_PROXY environment variable; the launcher routes the game's web traffic and hands off the proxy.github.com · 11 Oct 2026
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.github.com · 11 Oct 2026
macOS build
The repository provides macOS build instructions that produce FLauncher.app.github.com · 11 Oct 2026

Best FLauncher alternatives

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All accessCh 01 Prism Launcher Free planLinuxMac Free to start9.0 All accessCh 02 LabyMod Free planAndroidiOS Free to start8.9 All accessCh 03 Refract Free planWindowsMac Free to start8.6 All accessCh 04 Spectra Launcher Free planLinuxMac Free to start8.6 All accessCh 05 X Minecraft Launcher Free planLinuxMac Free to start8.5 All accessCh 06 ATLauncher Free planLinuxMac Free to start8.5

Where it ranks on Specifiction

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Sources