How do I update the server?

Change VERSION then re-run “docker compose up -d”, or run “docker compose pull && docker compose up -d” for a new image. Back up ./data before any version upgrade.

In the volume mounted on /data, i.e. ./data on the host (world/, server.properties, plugins/…). Don't delete that folder when recreating the container.

Minecraft 100% localFreeOpen access

Minecraft docker-compose generator (itzg)

Generate a docker-compose.yml for the itzg/minecraft-server image: server type, version, memory, players, RCON, ops and whitelist.

Last updated: 10/9/2026

100% local processing — saved in your browser.

Documentation

Server

container_name

type

Common values of the itzg image; others exist (see its documentation).

VERSION

MEMORY

E.g. 4G. Leave headroom for the OS and non-heap (~25%).

USE_AIKAR_FLAGS

Host port (TCP)

Game

MOTD

difficulty

mode

MAX_PLAYERS

VIEW_DISTANCE

SEED

Access and administration

ONLINE_MODE

Keep on unless behind a proxy or testing locally.

OPS

Comma-separated names or UUIDs.

WHITELIST

If filled, ENABLE_WHITELIST=TRUE is added.

ENABLE_RCON

RCON_PASSWORD

Example password: change it.

Docker

Auto restart (unless-stopped)

Data folder (host)

docker-compose.yml

Live preview — automatically saved in your browser.

# Generated by games-tools.game-rank.com
services:
  mc:
    image: itzg/minecraft-server:latest
    tty: true
    stdin_open: true
    ports:
      - "25565:25565"
    environment:
      EULA: "TRUE"
      TYPE: "PAPER"
      VERSION: "LATEST"
      MEMORY: "4G"
      TZ: "Europe/Paris"
      MOTD: "A Minecraft Server"
      DIFFICULTY: "easy"
      MODE: "survival"
      MAX_PLAYERS: "20"
      VIEW_DISTANCE: "10"
      ONLINE_MODE: "TRUE"
    volumes:
      - "./data":/data
    restart: unless-stopped

Server installation guideNo server yet? Install it locally or on a VPS / dedicated server, ports and firewall included.

How to use Minecraft docker-compose generator (itzg)?

The itzg/minecraft-server image (community-made, not official from Mojang) downloads and runs a Minecraft Java server from environment variables. This tool builds the docker-compose.yml: EULA acceptance, type and version, memory, game rules, access and RCON, with data persisted in ./data.

Install Docker and the Compose plugin on your server.
Choose the type (PAPER, FABRIC…), the version (LATEST or 1.21.x) and the memory.
Fill in game rules, OPS/WHITELIST and, if needed, RCON with a strong password.
Save docker-compose.yml, then run “docker compose up -d”; follow startup with “docker compose logs -f”.

Read the full documentation →