Minecraft Server Tools

Free tools for planning and running a Minecraft server. No account needed, and you do not have to host with us to use them.

Seed Map

Flagship

Enter a world seed and see the whole world before you play it. Every biome in the Overworld, the Nether and the End, at the surface, in the caves and down in the deep dark, with twenty four types of structure marked on top and the ground height at any spot you tap.

Finds

Village

Stronghold

Ancient City

Mansion

Monument

Outpost

Trial Chamber

Desert Temple

and 16 more

Runs the game's own generation rules in your browser, so the seed never leaves your computer

All three dimensions, including bastions, End cities and which of them carry an elytra

Tap anywhere for the ground height, then copy a teleport command with all three coordinates

Built for speed, so you can pan and zoom across the world without waiting for it to catch up

Every structure type verified against a real game before it was switched on

Java Edition, Minecraft 1.19 through to 26.2

Everything else

RAM Calculator

Find out how much memory your server needs based on your server type and player count, and see which plan matches.

MOTD Generator

Design the message shown under your server name in the multiplayer list, with colours, formatting and a live preview.

Give Command Generator

Build a /give command for a custom item with enchantments, a name and lore, in both the new and old syntax.

Slime Chunk Finder

Map every slime chunk in your world from the seed, and find the nearest one worth building a farm in.

server.properties Generator

Build your server config with every setting explained, correct for your version, and MOTD colours that actually work.

JVM Flags Generator

Build a start script with Aikar's flags or the tuned set we run in production, with every flag explained.

DNS Checker

Build the CNAME, A or SRV record for your own domain, then check what it resolves to and why players cannot connect.

Nether Portal Calculator

Convert coordinates between the Overworld and the Nether so your portals link exactly where you want them.

Java Version Checker

Find out which Java version your Minecraft version needs, and what the class file version error is telling you.