The Files section shows your server's whole directory: world folders, plugin and mod folders, configuration files. No extra program needed; the path bar at the top moves you between folders.

Editing

You can open and save text files (server.properties, or a plugin's config.yml) in the browser editor, and closing it with unsaved changes gets you a warning.

The editor gives you line numbers, code folding and syntax colouring, and only text files open there; a .jar or .zip is downloaded from its row instead. server.properties opens as a structured form showing the same values as Settings; changes there take effect at the next start.

In YAML files indentation is meaningful: one space too many or too few invalidates the file. Copy it before editing and a bad change is undone in seconds.

Uploading

You can upload any kind of file, .jar included. A zip can be extracted automatically on upload, or later from its row. A progress bar runs while it uploads, and you can cancel partway.

The maximum size of a single upload is not fixed: it follows the space left in your disk quota, and the panel prints it under the upload button. Zips keep a reserve for extracting into, so a zip's limit is smaller than a plain file's.

A practical warning: if you upload a large file while the server runs with nobody on it, the 15-minute idle-sleep rule can fire mid-upload. On paid packages, switch idle sleep off in Settings beforehand; on the free tier that switch is locked, so split a large file into pieces there.

Downloading, moving, deleting

You can download files one by one, move them between folders, rename and delete them. Multi-select deletes several at once; if one fails the job continues and the panel names those that stayed. Bulk download takes files only, not folders.

The search box filters the folder you are in and does not walk into subfolders, so a file elsewhere needs that folder opened first. Changing folders clears search and selection, so a stale selection cannot be deleted by accident.

Why world folders behave differently

Deleting a world folder is not an ordinary confirm box: you type the folder's name, you are told how many restore points you have, and a button starts a backup first. If your backup state cannot be read, the panel says so rather than claiming you have one.

The same protection covers the companion folders ending in _nether and _the_end, folders inside a world such as region and playerdata, and level.dat.

Storage space

The storage bar under the list shows what is left in your package and reddens as it fills. When it runs out new uploads are refused; deleting old worlds or finished archives frees space.

Troubleshooting

  1. The list will not open at all. A sleeping server's files are held in cloud storage and the panel cannot reach them; start it once and they come back. A newly created one shows a waiting message until setup finishes.
  2. The upload says the file is too big. The problem is the space left, not the file. Delete a world or a finished zip, refresh, and the limit grows.
  3. The zip uploaded but nothing was extracted. You probably answered no to the extraction question; the extract option on the file's row still opens it.
  4. Your change does not show up in game. Most configuration files are read only at startup, so restart the server; if it still does not apply, check the startup lines on the Console screen for an error naming it.
  5. A plugin you uploaded is not listed. Check that it sits in the plugins folder and ends in .jar; ending in .disabled means it is switched off, not missing.

Things to watch

  • Take a quick backup from Backups before changing a critical file.
  • Do not edit world folders by hand while the server runs; changes can be overwritten at shutdown, so stop it first.
  • Disabling a plugin from the Plugins section beats deleting its file: the name gets a .disabled suffix, its config files stay, and one click brings it back.

Mistakes people actually make

  • Deleting jar files you did not put there. The plugins folder holds the panel's measurement file and, with cross-play on, its files; the server writes them back at the next start.
  • Indenting YAML with the tab key. YAML rejects tabs — use spaces, or the plugin cannot read its own config.
  • Dropping a world zip into Files. The Worlds section exists for that, and the zip must contain level.dat.
  • Uploading mod files on a 2 or 4 GB package. Mod support opens from 8 GB upwards; below that a file dropped into mods does nothing — what you install is a plugin instead.
  • Looking for a deleted server's files later. Deleting a server deletes its backups too — download anything you want to keep first.

Which screen for which job

  • A config line, or downloading and re-uploading one file: Files.
  • Game settings such as difficulty or view distance: Settings (the same form opens with server.properties).
  • Installing, disabling or removing a plugin: Plugins. Installing a mod: Mods (8 GB and larger).
  • Uploading a world or switching the active one: Worlds.
  • A restore point before a risky change: Backups — set-up details are in the backup guide.