BL4 Tools

Back up BL4 before editing a save or modding

A backup is a recovery option, not proof that an editor or mod is compatible. Start with the documented game-data folder, keep an untouched copy, and test one change on a separate character before considering a main save.

The documented PC data location

The official troubleshooting guide identifies Documents\My Games\Borderlands 4. If Windows redirects Documents to another drive or cloud folder, use that actual Documents location. Do not substitute an assumed Oak2 path from another Unreal game.

Check that the folder belongs to the character/profile you intend to protect. Keep the full game-data directory rather than guessing that one file is the whole save.

A backup sequence you can verify

  1. Close BL4 and wait for any launcher cloud-sync operation to finish.
  2. Copy the entire Borderlands 4 data folder to a separate dated directory. Use a copy operation, not cut-and-paste.
  3. Check that the backup has files and plausible sizes. Keep it outside the folder a mod/editor will write to.
  4. Record the platform, game version and character associated with it.
  5. Keep a second untouched copy before trying a restore. A backup that has already been edited is no longer your original.

Before choosing a save editor

This page does not endorse a particular editor or provide a tested download. Check an actual author’s release notes for the supported game version, file format, operating system, known failures and uninstall/restore process. A familiar tool name from BL3 does not establish BL4 compatibility.

Do not give a utility platform credentials or overwrite your only save to find out whether it works. Prefer a copied test character and a tool that explains which files it changes. A cosmetic label alone does not establish renderer compatibility or online safety.

If a change breaks the game

  1. Stop launching the affected save repeatedly and preserve the broken copy for comparison.
  2. Remove the mod using its author’s instructions, then verify the stock game files through Steam or Epic.
  3. With the game closed, restore the untouched backup to the original location only after confirming which copy you want to keep.
  4. If a launcher presents a local/cloud conflict, inspect the timestamps and file choice before selecting a version. Do not assume the newest timestamp is the healthy character.
  5. Test once and record the result. If the failure remains on the stock installation, use the crash checklist and send the reproduction to support.

Co-op and shared progress

Test changes separately from public co-op and agree on modifications with the people in a private session. A successful offline launch does not prove that modified items or progress will behave correctly in another player’s session. This site does not guarantee account safety, a ban-free result or compatibility with every patch.

What this page can answer

It provides the official data root, a copy-and-check routine and a recovery sequence. It does not host saves, edit files, or claim a tested current editor. If you only want to plan points without touching a character, the browser Build Planner records a separate allocation and share link.

Source location checked October 18, 2026. Backup and comparison steps are general file-handling guidance, not a claim that BL4 Tools tested a particular mod.