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Hytale Config.json Invalid

Hytale Guide • Updated Oct 16, 2026

Hytale Config.json Invalid: Fix Parse Errors

If the server fails to start or settings refuse to apply, the main cause is usually a malformed JSON file. Hytale uses JSON for both the main server config and world-specific configs.

Symptoms

Symptom What It Means
Server won’t boot JSON parse error in config files
Settings ignored Invalid or misplaced keys in config.json
World rules not applying World-specific config.json is broken

Where the Files Live

  • Main config: config.json in the server's working directory (next to permissions.json, bans.json and whitelist.json)
  • World config: universe/worlds/<name>/config.json; the default world is named default

Step-by-Step Fix

  1. Back up your config files. Copy both config.json files before editing.
  2. Validate JSON. Run the file through a JSON validator to find missing commas or quotes.
  3. Revert to defaults. Move the broken config aside and restart the server to regenerate defaults.
  4. Re-apply changes carefully. Copy settings back in small batches and restart between edits.
  5. Check logs. Review the newest file in logs/ (a new one at every start, named like 2026-10-16_08-30-00_server.log) for the exact line number of errors.

Tip: JSON does not allow trailing commas. A single extra comma will prevent the server from booting.

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