Add Password to ZIP

Add password protection to regular files or existing ZIP archives and rebuild them into encrypted ZIP files.

add password to ZIP password protection

What is the ZIP password utility?

The ZIP password utility is an online application for adding protection to an existing normal ZIP archive. If you need to send a ready-made ZIP file to someone else but it contains sensitive data, you do not need to unpack it and rebuild it with desktop software. Just drop the file into this utility, enter your password, and a strongly protected encrypted ZIP copy will be created for you in a short time.

How to encrypt a ZIP online?

  • Import file:Drag your unencrypted ZIP archive into the processing area at the top of the page.
  • Set password:Enter the password you want to use in the password dialog and make sure you remember it.
  • Fast processing:The utility reads the files one by one in your browser and rebuilds them as an encrypted archive locally.
  • Download and save:When processing is complete, click the download button to get a new encrypted archive ending with -encrypted.

Frequently asked questions

Is the password adding process safe?

Yes. This utility is built entirely with modern browser technology, and all encryption work is completed on your local computer. Neither your files nor the password you set are uploaded to any external server, which avoids the risk of data leakage during transmission.

What if I forget the password I added?

If you forget the password you set, we cannot recover it or decrypt the file for you because we do not store any of your information. For that reason, please choose a password you can remember or store it safely in a password manager.

Can I change the password of an already encrypted ZIP directly?

This utility is intended for adding a password to ZIP files that are not yet encrypted. If your file already has a password, the system will detect and stop it automatically. If you need to change the password, first remove the original password with the ZIP password remover and then use this utility to add a new one.

Recommended utilities

You may also need these file utilities