Server Status & Port Check
See whether a server answers from the internet, which port is closed if it does not, and who is online right now.
Config File Generator
Fill in a form and get a config that parses — server.properties, PalWorldSettings.ini, server.cfg and the files for 17 more games.
Game Calculators
Raid costs for Rust, Nether coordinates for Minecraft, production ratios for Factorio, and more than twenty others.
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Port Forwarding Guide
Which ports to open, in the words your router's menu actually uses — plus the admin ports that must stay closed.
Minecraft Version & Java Checker
Java requirement, compatible server software and mod/plugin compatibility for every Minecraft release from 1.7.10 up.
Restart Scheduler
A restart script that warns, saves and stops in the right order, with a crontab entry that fires at the time you meant.
Modpack Requirements
Look up a CurseForge pack's Minecraft version, loader and Java requirement, and whether a server pack exists.
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Command Generators
Builders for /give commands, colour codes, MOTDs, whitelist files and banners, plus ARK admin commands, per-game RCON cheat sheets and Discord webhooks.
Mod Dependency Checker
The full list of mods a CurseForge mod needs — its dependencies, and theirs.
RAM Calculator
How much memory a server needs for your game, your group size and your mods.
Minecraft Start Script & JVM Flags
A start.sh and start.bat for Paper, Fabric, Forge or NeoForge, with the heap sized for your machine and Aikar's flags.
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Circle, Sphere & Dome Generator
Block-by-block circles, spheres and domes for Minecraft builds, layer by layer, with a row-by-row list to build from.
Would you rather skip the setup?
Spawnly, the host that funds this site, sets servers up for you: modpacks install in one click and the control panel edits these config files, so you never open one yourself.