Folder Sync

Sync important folders with a clear preview before anything changes

Select the folder you want to copy from and the folder you want to update. Exclude files you do not want to include, then see every file that will be added, updated, left untouched, or removed before you run the sync across local folders, external drives, direct Dropbox locations, and Google Drive folders synced locally with the Google Drive client.

Dropbox is a direct, authorized remote workflow. Google Drive remains a local-folder workflow: use the Google Drive client to keep Drive folders available locally first.

A clear workflow

Sync in four deliberate steps

01

Choose your source and target

Choose the folder that defines the current version and the folder you want to bring up to date. It could be a project and its external-drive backup, a photo library and an archive, two active working folders, or a local folder paired with a Google Drive folder synced locally by the Google Drive client.

02

Decide what to exclude

Leave temporary, generated, or private files out of the comparison. Add patterns such as *.log or cache/ directly, or load an exclude file. Common operating-system clutter is ignored by default.

03

Preview the differences

FileLever compares both folders before a sync begins, then sorts the results into clear groups so you can see the outcome in advance.

04

Choose the right sync mode

Use copy/update to refresh the target without removing its extra files. Choose mirror only when the target should deliberately become a replica of the source.

FileLever folder sync preview showing files to sync, target-only files, and unchanged files before a sync

Preview the outcome

See the file groups before the sync starts

The preview keeps the decision understandable: files to sync, target-only files, and unchanged files stay separate so you can choose copy/update or mirror with evidence.

  1. 01 Check missing and changed source files before they reach the target.
  2. 02 Treat target-only files as a deliberate keep-or-remove decision.
  3. 03 Choose copy/update for conservative backups or mirror for reviewed replicas.

Before anything changes

Preview the differences

The preview separates the work that needs attention from the files that can stay as they are.

To Sync
Source files missing from the target, along with files whose target copy needs updating.
Target Only
Files found in the target but not in the source. Copy/update leaves them untouched.
Unchanged
Files that already match in both folders, with no work required.

Choose intentionally

Two modes, two different outcomes

Mode What it does Best for
Copy / Update Adds missing source files and refreshes changed ones. It keeps files that exist only in the target. Backups, archives, and any target that may hold extra files worth keeping.
Mirror source to target Brings the target in line with the source, then removes files found only in the target. Deliberately maintained replicas that should match the source exactly.

A familiar use case

Example: updating an external-drive backup

Your laptop project folder is the source; the external drive is the target.

After previewing, you may see:

  • 30 files under To Sync: 24 new files and 6 changed files
  • 3 Target Only files—perhaps older exports that live only on the drive
  • 140 unchanged files

Choose Copy / Update to retain those exports. Use Mirror only when removing them is the right way to make the backup match the source.

See the differences first. Sync when you are ready.

Start with a clear comparison and stay in control through final confirmation.