Custom Minecraft Launcher

Design Your Own Custom Minecraft Launchers and Mod Update Systems Easily Using Extreme Launcher

Supports All Server Versions: Official and Unofficial

Extreme Launcher is compatible with both official and unofficial Minecraft servers, including Vanilla.

Full Account Management

  • Multiple Accounts: Add multiple accounts and easily switch between them.
  • Authentication Support: Fully supports Microsoft (OAuth 2.0) authentication.
  • Secure Credentials: Credentials are never stored and are transmitted directly to Mojang.
  • Supports Offline Login

Efficient Asset Management

  • Instant Updates: Receive client updates as soon as we release them.
  • File Validation: Files are validated before launch. Corrupt or incorrect files will be automatically redownloaded.

Automatic Java Validation

  • Java Compatibility: If you have an incompatible version of Java installed, we'll install the correct one for you.
  • No Java Required: You do not need to have Java installed to run the launcher.

Minecraft Forge, Fabric, LiteLoader and more

  • Our custom Minecraft launcher supports all Forge versions. We also support Fabric and LiteLoader server versions.
  • You can create, export and import your custom modpacks.

Built-in News Feed: Stay updated with the latest news directly within the launcher.

Intuitive Settings Management Includes a user-friendly settings interface with a Java control panel for easy configuration.

Automatic Updates - the launcher can update itself automatically.