Are selected folders uploaded?

No. The comparison reads only the folders selected in the browser and runs locally.

Does it inspect drive health or delete files?

No. It only creates a report for matched, changed, missing, and extra files.

Private file utility

Compare a source folder and backup folder by relative path and SHA-256 hash locally in your browser.

Files are processed in your browser. They are not uploaded to this site.

Source folder

Choose folder

Backup folder

Choose folder

Local limits: Max files per folder: 1000 / Max total size: 500 MB

Folder tools use browser-provided relative paths when available.