MC-WEB / SELF-HOSTED

MC-WEB

Minecraft in your browser, built from your own game files.

Play in fullscreen only

Play opens the game in fullscreen. Stay there: in a normal window, keys like Ctrl+W close the tab and you lose anything unsaved. To leave fullscreen, hold Esc.

1Choose a player name

3–16 letters, numbers or underscores. Worlds are saved in this browser under this name. There's no sign-in.

Player: choose a name.

2Get the game

On a Chromebook: click Load game file and pick the .mcweb file you copied over. You only do this once per browser.

Build: checking for a browser build.

Browser: waiting for a build.

BUILD FROM THE TERMINAL

On the PC that has Minecraft installed, run the command for your system from the public/mcweb checkout, then come back to this page.

macOS

node tools/build.mjs --mc-dir "$HOME/Library/Application Support/minecraft" --out dist/build

Linux

node tools/build.mjs --mc-dir "$HOME/.minecraft" --out dist/build

Windows PowerShell

node tools/build.mjs --mc-dir "$env:APPDATA\.minecraft" --out dist/build

The local server picks up build/web-graal/graal/minecraft-client.js.wasm by itself. Nothing is uploaded.

The game file is Minecraft built from your own copy. Keep it to yourself; don't share or host it.

3Play

Opens fullscreen. Click the game once to capture the mouse.

MORE

Local server: connecting.

Multiplayer: not available in this build.

No persisted boot phases yet.