Tools
Tools
Each tool answers exactly one question and shows where the answer came from. They read the same database as every other page, so an answer here can never drift from an answer there.
Jar identifier
Which server jar is this?
Paste a SHA-256 and find out exactly which software, Minecraft version and build a jar is, or confirm a download is the file the publisher released. Nothing is uploaded.
Java version checker
Which Java version does my Minecraft version need?
Pick a Minecraft version and get the runtime it requires, which newer runtimes exist, and which server software publishes builds for it.
Connection checker
Can my client join that server?
Minecraft compares protocol numbers, not version names, and two versions with different names sometimes share one. Pick both sides and get a straight answer.
Server status and player count
Is that server up, and who is on it?
Live player count, version and MOTD for any Java or Bedrock server, plus which Minecraft versions can actually connect to it.
MOTD generator
How do I make a coloured server MOTD?
Write your server's message of the day, colour it, and see it rendered exactly as the server list will. Copy the codes for server.properties or a plugin.
RAM calculator
How much RAM does my server need?
Estimate the memory a server needs from its type, players and mods, with an -Xmx figure and the reason more is often worse.
Color and formatting codes
What are the Minecraft color codes?
Every color and formatting code with its exact hex value, for MOTDs, signs, team names and chat. The section-sign reference server owners keep open in a tab.
Compatibility matrix
What runs on which Minecraft version?
Server software and mod loaders across recent releases, with the evidence shown for every claim.
Build browser
Which build should I download?
Every tracked build with its checksum and a link to the project's own host. Nothing is mirrored here.