How to lock a folder on mac with password without disk utility?

You can use a third-party app to password protect folders on Mac with password. Encrypto is a free utility available in the Mac App Store (requires macOS 10.13 or later) that encrypts files or folders using AES‑256 encryption—the industry standard used by many major services.

How to password lock folders on Mac

1. Download and install it from the Mac App Store. It’s free and lightweight.

2. Drag your folder or file directly into the Encrypto window.

3. Set a strong password, and optionally a hint that reminds the recipient of the password (without revealing it)

4. Click Encrypt. The app outputs an encrypted file named like your original, with a .crypto extension. The encrypted file may be slightly smaller or larger due to compression.

5. You can either save the .crypto file on your disk (e.g. for personal secure storage) or share it via email, cloud, AirDrop, and more using built‑in sharing options in the app .

6. To open, simply double‑click the encrypted file (with Encrypto installed). Enter the password (hint is shown if included) to decrypt and restore the original content .