Comparison

YuyuFrame vs Lunar Client, Feather, AZ Launcher

An open source alternative to PvP clients: what each one does, taken from their official websites. Updated September 29, 2026.

At a glance

Comparison of YuyuFrame and other Minecraft clients and launchers
YuyuFrameLunar ClientFeatherAZ LauncherPrism Launcher
Public source codeYes (GPLv3)Not publishedNot publishedNot publishedYes (GPLv3)
FreeYesYesYesYesYes
Optional purchasesCloud backupCosmetics, Lunar+ subscriptionNot statedNot statedNone
Built-in PvP mods25 modulesOver 75Over 40A few (armor HUD, low fire, macros…)None
Add your own modsYes, in Fabric, Forge, NeoForge or Quilt instancesFabric, from 1.16Forge, FabricNoYes (all loaders)
Versions with PvP features1.8.9, 1.21.11, 26.1 to 26.31.7, 1.8, 1.12, 1.16 to 1.21Not statedNot stated—
PlatformsWindowsWindows, macOS, LinuxWindows, macOS (Apple Silicon)Not statedWindows, macOS, Linux

“Not stated”: the information is not on the official website at the time of writing. Feather states on its website that it was acquired by InPvP and is moving its players to a new client, Dawn. Badlion Client was acquired by Lunar Client.

An open source Lunar Client alternative

Lunar, Feather and AZ Launcher are PvP clients whose code is not published. Prism Launcher is open source, but it is an instance manager: it adds no in-game features. YuyuFrame brings both together: the code of the launcher and of the in-game agent is public, and it includes the modules you expect from a PvP client — keystrokes and CPS, zoom, freelook, 1.7 animations, armor HUD…

It is also a full launcher: vanilla, Fabric, Forge, NeoForge, Quilt, Modrinth and CurseForge mods and modpacks, multiple accounts. Each module is described on the modules page.

What YuyuFrame still lacks

  • Windows only: no macOS or Linux version yet.
  • Fewer modules than the biggest clients: 25, chosen for PvP and comfort.
  • Targeted versions: the modules work on 1.8.9, 1.21.11 and 26.1 to 26.3, not on every version.
  • An executable not yet signed with a publisher certificate: Windows shows a warning during install (explanation).
  • No published performance numbers: until a reproducible benchmark protocol is online, we don’t claim any FPS gain.
  • A young project, with a community that is still small.

Sources