Alternatives to Minecraft Launcher
The official launcher for installing, updating and playing Minecraft Java and Bedrock editions and other Mojang games. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Minecraft Launcher
The official launcher for installing, updating and playing Minecraft Java and Bedrock editions and other Mojang games.
Replacements
Listings that take over the same core job as Minecraft Launcher.
Prism Launcher
A Minecraft launcher that keeps every modpack in its own instance so one update cannot break the others.
Prism Launcher is open source under GPL-3.0, keeps each modpack in its own instance and installs mods from Modrinth and CurseForge, but it does not launch Bedrock edition.
Modrinth App
The official launcher for Modrinth, built around installing mods and modpacks in a couple of clicks.
Modrinth App is a GPL-3.0 launcher built around installing Modrinth mods and modpacks into separate instances, while CurseForge packs must be imported by hand.
MultiMC
An alternative Minecraft launcher for managing multiple cleanly separated instances with their own mods and saves.
MultiMC is an open-source launcher with isolated instances and fine Java control, and runs old Minecraft versions, though recent releases are infrequent and a Microsoft account is still required.
ATLauncher
A Minecraft launcher that browses, installs and manages modpacks and separate game instances.
ATLauncher is a GPL-3.0 launcher that browses and installs modpacks from several sources into separate instances and manages Java versions, but needs a working Java installation.
GDLauncher
A free Minecraft launcher that installs mods and modpacks from CurseForge and Modrinth with one click.
GDLauncher is a free launcher with one-click installs from CurseForge and Modrinth, Forge, Fabric, NeoForge and Quilt support, and shareable instances, though its source license is not stated.
Similar software
Related functionality, not a direct replacement.
CurseForge
A mod platform with a desktop app for finding and installing mods and modpacks for many games.