Tools / Valheim

Valheim

All 4 free Valheim server tools, in one place.

## tools

valheim/server-seed

Valheim Launch Command Generator

Generate a dedicated-server startup command, UDP firewall rules, and world/seed handoff steps.

> Build startup

valheim/log-analyze

Server Log Analyzer (mods broke after 1.0?)

Drop the server log in. Read in your browser with no upload and no size limit, then diagnosed in plain language: plugins built for the old build, world files that won't load, PlayFab crossplay trouble, ports, memory - with a direct handoff to World Recovery when the world is the problem.

> Diagnose log

valheim/world-doctor

Valheim World & Modpack Doctor

Read a .fwl world file in your browser (name, seed, world modifiers - never uploaded), emit the documented -modifier startup flags, and health-check a Thunderstore modpack: missing deps, deprecated packages, server-vs-client tags.

> Run checkup

valheim/world-recovery

World Recovery (corrupted .db / .fwl)

World won't load, or a .db/.fwl got mismatched or truncated? Point at your world folder - this pairs up the .db/.fwl files and .old backups, ranks them by time and integrity, picks the newest intact pair, and hands you a clean, ready-to-upload world + launch arg. Browser-only.

> Recover world

deeper guides

For game-side help (how mods work, command references, troubleshooting writeups), use the Valheim wiki.