MINECRAFT LAUNCHER · V0.1.0 PRE-RELEASE
The launcher that gets out of your way.
A Rust core with 49 tests passing, a React 19 webview on the Tauri 2 bindings, and a host crate that is the seam still being wired — the webview runs in a browser preview meanwhile.
no installer yet · windows · macos · linux planned
Welcome back
MeowMC
No account signed in — instances launch in offline mode.
Play something
Selected instance
What's new
api/v2/news.php
2026-10-21 · launcher
Launcher core test suite is greenThe Rust core behind the launcher — accounts, sessions, instances, the download engine and the launch supervisor — builds clean with 42 passing tests.2026-10-20 · launcher
Launcher interface verified in the browserThe webview passed its check pass at 900x640 — sign-in, the instance wizard, the updates screen and the settings slots render as designed.2026-10-23 · site
Site and docs rebuiltmeowmc.org and docs.meowmc.org were rebuilt on the black-and-white system; the docs hold the full developer and player reference.
meowmc v0.1.0 · pre-release · no installer yet
49 tests · 16 typed commands · SQLite state
Rust core
Accounts, sessions, the download engine and the launch supervisor live in one Rust crate — 49 tests passing — behind a typed command surface.
tauri 2 bindings
React 19 webview
The UI is a React 19 webview built on the Tauri 2 API bindings. The host crate is the seam still being wired, so the webview runs in a browser preview meanwhile.
one mod set per instance, no cross-talk
Mod management
Mods are attached to the instance they belong to, from the Mods screen. Changing your mod set never touches another installation.
runtime inventory · per-instance selection
JVM handling
The launcher inventories the Java runtimes on your machine and picks the right one per instance, so you stop hand-managing JVMs.
token in keychain, never in SQLite
Session in keychain
The device-code ladder — Microsoft account, Xbox Live, XSTS — is implemented in the Rust core, with the session in the OS keychain.
v0.1.0 · pre-release
Honest by default
No installer has been published. The downloads page lists all 5 planned artifacts with their real status — nothing is presented as available that is not.
Built around instances.
Every instance holds its own game directory, version, and mods. Create one in the wizard, name it, and play — the launcher isolates the rest from it.
Add an instance
Name it and pick a version from the vanilla manifest. The launcher creates an isolated game directory for it, so nothing else on your machine changes.
Sign in once
Sign in with a Microsoft account through the device-code flow. The session lands in your operating system's keychain and stays there — never in the launcher's database.
Press play
The launcher inventories the Java runtimes you have, picks the right one for the version, and boots the game. No JVM fiddling, no command line.
Is MeowMC free?
Yes. There is no purchase, subscription, or premium tier — the launcher is one program and it does the same thing for everyone.
Which Minecraft versions does it run?
Instances are created against the vanilla version manifest, so any version Mojang still serves is selectable. The MeowMC server software itself targets Minecraft 26.3.
Which platforms does the launcher support?
Windows, macOS, and Linux — five installers are planned: x86_64 and ARM builds for Windows and macOS, and an x86_64 AppImage for Linux. The Tauri 2 host that ships them is the seam still being wired; the webview runs in a browser preview meanwhile.
How does sign-in work, and where does my session live?
Sign-in uses the Microsoft device-code flow: account, Xbox Live, then Minecraft services. The session token stays in your operating system's secret store — never in the launcher's SQLite database.
Can I use mods?
Yes. Mods are managed per instance from the launcher's Mods screen, so each game installation keeps its own set.
When can I download it?
Not yet. The launcher is at v0.1.0 pre-release, built from the in-repo core with 49 passing tests, but no installer has been published. The downloads page shows the planned artifacts and their real status.
Is MeowMC affiliated with Mojang or Microsoft?
No. MeowMC is an independent project. Minecraft is a trademark of Mojang Synergies AB, and MeowMC is neither affiliated with nor endorsed by Mojang or Microsoft.
Watch the build.
MeowMC is at v0.1.0, pre-release — the Rust core passes 49 tests and the Tauri 2 host crate is the seam still being wired. No installer has been published; the downloads page lists every planned artifact with its real status.