File Organization and Security Toolbox
Batch rename files locally in the browser, find duplicate files, merge file chunks, generate verification manifests, and encrypt files using AES-GCM.
How to use the File Organization and Security Toolbox
File contents are read, hashed, chunked, packaged, or encrypted only in the current browser; the tool will not upload them, and it will not automatically delete the original files.
Select a File Task
Select rename, find duplicates, merge chunks, validate a list, or AES-GCM encrypted package.
Preview and process
After confirming the file count, total size, new name, chunk order, or encryption parameters, actively start processing.
Download and verify
Save the output and manifest; important files should be reopened, merged, or decrypted for verification elsewhere.
Limitations and Notes
- Ordinary webpages cannot directly rename, overwrite, or delete original files on disk; rename mode outputs a copy with the new name.
- Large-file operations are limited by browser memory, download policies, and device performance. Retain the original before processing files approaching the limit.
- If you forget AES-GCM, it cannot be recovered; an encrypted package is not RAR/7Z, and it does not replace a complete backup or key management.
FAQ
Will duplicate files be deleted automatically?
No. The tool only lists duplicate groups with the same SHA-256, and deletion is confirmed by the user in the file manager.
Why is it a downloaded copy after renaming?
Browsers cannot arbitrarily modify local file paths, so the tool will generate a downloaded file or archive with a new name.
Can an encrypted password be recovered?
No. The password is used only for local key derivation on the current page; this site neither receives nor stores the password.