This small application can lock and unlock files with password, prevents others from opening them without permission.

Update 13/05/2025

Updated version 1.1, fixed security risk.

Features

• Lock & unlock files
• Each file has a separate password.
• Open locked file then automatically lock after closing (may not work on all file types).
• Windows file context menu.

Screenshots

Read before using:

Do not lock files that have special characters in name!

Important Note

This app has not been signed so you will/may encounter warning pop-up from Windows. If you trust me, then nothing to worry, or don’t use it. Thanks.

Platform

For Windows only, no plan for other platforms.

• Windows XP (Not guaranteed)
• Windows Vista (Not guaranteed)
• Windows 7
• Windows 8/8.1 (Not guaranteed)
• Windows 10
• Windows 11

Privacy policy

• This product does not collect, save, transmit key strokes when user types in.
• This product does not access, collect, or transmit personal information (data that could be used to identify a person).
• This product does not share or transmit the data that user created by using this product.

Donate

If you like my work and want to help, buy me a coffee at PayPal.

Contact

If you have any question, send me an email to lkonle@proton.me