Valheim server log analyzer
Server stopped working, mods broke after the 1.0 update, or players cannot join? Drop the server log in. It is read in this tab, never uploaded, no size limit, no account. 13 failure patterns with the current, 1.0-era failure modes first: plugins built for the old build, world files that will not load, crossplay trouble, ports, memory.
Drop the log file here, or
The console output of the start server script is best. BepInEx's LogOutput.log is even better for mod problems. A .gz log is read directly.
Where the log lives
A self-hosted dedicated server logs to its console: keep the window open, redirect the
start script's output to a file, or on Linux read it with journalctl if it runs as a
service. With BepInEx installed, BepInEx/LogOutput.log in the server folder
holds the richest record of plugin loading and errors. On a host panel, use the console
or server log view and download or copy from there.
What it looks for
Around a major update the same story repeats on every modded server: the game binary
changed, the plugins did not, and the log fills with TypeLoadException and
failed Harmony patches until every mod is updated. The rules here recognise that story
line by line and name the responsible plugin where the log allows it - plus the
non-mod classics: a world .db that will not load (with a handoff to
World Recovery), PlayFab crossplay errors,
ports already in use, version and password rejections, disk-full and out-of-memory. The
benign noise, like world generation placement warnings, is labelled benign so you can
stop worrying about it.
Want this on a real server? Supercraft hosts Valheim →