ATLauncher vs FLauncher

ATLauncher is a Minecraft launcher for browsing, downloading and installing modpacks. Its catalog includes packs from ATLauncher, CurseForge, Modrinth and Technic, and it supports multiple mod loaders and pack imports. Users can maintain separate instances so a new installation does not affect an existing one; the launcher automatically selects the Java version for a pack.

The launcher supports multiple accounts, including Mojang and Microsoft accounts and Xbox Game Pass subscribers. Instance management can install mods, maps and resource packs from CurseForge and Modrinth. It also offers one-click save backups and tools to create and run servers for ATLauncher modpacks. ATLauncher is free and has downloads for Windows, macOS and Linux, as well as a Jar download. Playing modpacks requires a purchased Minecraft account. The site no longer accepts submissions for its own pack platform and recommends Modrinth or CurseForge for sharing packs. For help, users can turn to Discord; contact form requests needing a response are answered within 24 hours.

FLauncher has no write-up on Specifiction yet; its figures are above.