Is my Minecraft server online?
Type the server address, the same one you use in the game. We'll tell you whether it responds, how many players are on, which version it runs and its MOTD, just as the server list shows it.
If it says “Not responding”
It's almost always one of three things: the server is offline or starting up, the port isn't the one you think, or it can't be reached from outside (router, firewall or the host). It's explained step by step in “I can't connect to my Minecraft server” (in Spanish). If it's yours and its console shows errors when it starts, see “My Minecraft server won't start” (in Spanish).
Adding someone to the whitelist or giving them permissions? Look up their UUID with the Minecraft UUID lookup.
Is it a Valheim or Project Zomboid server? They have their own tool: Valheim and Project Zomboid.
Show your server's status on your website
When your server responds, its badge appears under the result: a small image with the players online that updates itself every minute. Copy the code for your website, your GitHub README or a forum, and anyone who sees it will know whether you can play before opening the game.
Frequently asked questions
Why does it say “Not responding” when my server is on?
Because it can't be reached from outside: the port isn't open on the router or the firewall, that isn't the right address or port, or the server is still starting up. If nobody can join in the game either, check the connection errors guide.
Does it work for Bedrock servers?
No: it checks Minecraft Java servers. Bedrock ones use a different protocol.
Do I need to add the port?
Only if it isn't 25565 and the address has no SRV record. If you join without a port in the game, you can leave it out here too.
Do you store the addresses I check?
No. The server is queried on the spot and the answer is forgotten within a few seconds (the badge's, after a minute).
How often does the badge update?
At most once a minute: we query your server and keep the answer for that minute. Some sites, like GitHub, cache it a little longer on their own.
Looking for a server that stays up?
At NapNodes the RAM in your plan is yours alone and each machine's load is public on the status page. And if you want to start, there's a free Minecraft server, no card needed.
More free tools
Is my Valheim server online?
Type a Valheim server's address and port and see whether it responds, how many are playing and its name.
Is my Project Zomboid server online?
Type a Project Zomboid server's address and port and see whether it responds, how many are playing and its name.
Minecraft RAM calculator
How many GB your Minecraft server needs for its plugins or mods, the players online at once and the view distance.
How much RAM do I need? (every game)
Minecraft, Hytale, Project Zomboid, Valheim or a Discord bot: pick the game, players and mods, and see the plan that fits.
server.properties editor
Paste your server.properties, change each option with a plain-English explanation and download it. It flags the ones that no longer work.
MOTD generator
The server list message with colours and styles, a live preview and the line ready for server.properties.
Chunky pre-generation calculator
How much disk and time pre-generating your world with Chunky takes for a given radius, with the console commands ready.
Nether portal calculator
Convert Overworld coordinates to the Nether and back to link portals without duplicates. Paste your F3 line.
Project Zomboid mod list
Paste Workshop links and Mod IDs and get WorkshopItems= and Mods= written correctly, with the Build 42 backslash.
Project Zomboid settings editor
Paste your .ini and SandboxVars.lua (or start from scratch), change their 400+ options with a search box, and download them.
Minecraft UUID lookup
Type a Minecraft Java username and get its UUID, the offline one and the lines for whitelist.json and ops.json.
/give command generator
Items with enchantments, a coloured name and lore: the /give command written right for your Minecraft version.
/summon command generator
Mobs with a coloured name, more health, another size, gear or standing still: the /summon command written right for your version.
Server name generator
Name ideas for your server by game and style, with your own word if you like, and what its address would look like.
/tellraw and /title generator
Messages with colours, bold and click actions in chat or across the screen: the /tellraw or /title command ready to copy.
Which Java do I need?
Type your Minecraft version or paste the Java error and we'll tell you which Java your server or your game needs.
Gradient text generator
Type some text, pick the colours and get the gradient in “&#”, MiniMessage or “&x” for chat, the MOTD or plugins.
Server icon maker
Upload an image (or type a few letters) and get the 64×64 server-icon.png Minecraft asks for, ready for Files.
Slime chunk finder
Enter the seed and your coordinates and see the slime chunks nearest to you on a map of your Minecraft Java world.
SteamID64 finder
Paste a Steam link, a username or a STEAM_0 ID and get every form of the ID and the adminlist.txt line for Valheim.
What does it cost in electricity?
What it costs in electricity to keep the server running on your PC at home, side by side with a plan and the free server.
start.bat generator
The start.bat or start.sh for your Minecraft server with the RAM set right and Aikar's flags, ready to download.
Discord bot permissions calculator
Tick your bot's permissions and get the number and the invite link; or paste a number and see which permissions it grants.