Server Log Analyzer
Paste a Minecraft server log or crash report to find errors, broken plugins, missing dependencies, version mismatches and lag warnings, with suggested fixes.
Your log
latest.log, a console copy or a crash report
Your log never leaves this browser. Nothing is uploaded. Redact IPs before you share a log anywhere else.
Paste a log to see what went wrong
You find it in logs/latest.log, or in crash-reports for a crash.
What it looks for
The analyzer reads the log line by line and matches known messages from Paper, Purpur, Spigot, Fabric, Forge, NeoForge and Velocity. It finds the server software, Minecraft version and Java version, lists plugins or mods when the log names them, and counts warnings and errors.
Each known problem gets a short fix: plugins that failed to load or enable, missing dependencies, a Java version that is too old (Minecraft 26.x needs Java 25, 1.20.5 to 1.21.x need Java 21), lag warnings, out of memory errors, port conflicts, watchdog freezes, duplicate jars and more. Issues are sorted so the ones that stop the server come first.
Privacy
Everything runs in your browser. The log is never uploaded, so you can paste logs with player names and IPs. If you share the log anywhere else, remove IP addresses first. The Redact IPs option masks them on this page.
ZCraft Studios
Ready-made configs for your plugins
Configs for popular plugins, with setup docs, changelogs and support on Discord.