What Terraria Map Files Can I Edit with tedit.dev?

Updated

tedit.dev is a browser-based Terraria map editor, so the files it is built to work with are Terraria world/map files. The site itself is a web application that requires JavaScript to be enabled in your browser; it does not publish a detailed file-format compatibility list on the page. That means the practical rule is: confirm that your specific world file format is supported before you upload or open it, rather than assuming every Terraria map variant will load.

What the editor is designed for

  • Terraria world/map files — the editor is described as a "web browser editor for terraria maps," so its target input is Terraria map data rather than arbitrary image or tile files.
  • Editing in the browser — you work on the map inside the web app; there is no separate desktop install described on the site.
  • Open source — the project is labeled open source, which matters if you want to inspect how it parses map files or check for format support in the code.

What to check before uploading

Because the page evidence does not list accepted file extensions or version numbers, verify compatibility in this order:

  1. Identify your file type. Know whether you have a Terraria world file (the .wld world save) versus a player file or a backup. The editor is described for maps/worlds, not player data.
  2. Check the version. Terraria world formats have changed across game updates. If your world was saved by a much newer or older game version, test with a copy first.
  3. Work on a copy. Keep your original world file untouched and open a duplicate in the editor so a failed load or save cannot damage your only copy.
  4. Confirm JavaScript is on. The application will not run without JavaScript enabled, so a blank page usually means the script was blocked, not that the file is invalid.

Practical example

Suppose you want to flatten a section of a world you built in Terraria. Export or locate the world save, make a duplicate, enable JavaScript, and open the duplicate in tedit.dev. If the map renders, the format is readable by the editor and you can proceed. If it fails to load, the likely causes are an unsupported game version or a file that is not a world/map file — in that case, convert or re-save the world in a compatible Terraria version before trying again.

Bottom line

Use tedit.dev for Terraria world/map files edited in the browser, and treat format compatibility as something to verify with a test copy rather than assume. The site confirms the browser and JavaScript requirement but does not publish a version-by-version file support table, so your own test load is the reliable check.