Simply encrypt files from your browser

simply encrypt files from your browser
simply encrypt files from your browser

How can you be sure that a third party cannot access your files sent over the Internet? By encrypting them of course! With miniLock you can simply make encrypted files available on a Cloud or send them by Skype, avoiding curious children.

MiniLock is an extension for the chrome browser which will create a secret key from your email address and a passphrase. This public/private key duo is generated in a completely transparent manner. As everything is done locally, there is no risk of your information being retrieved by who knows who. In the end, you will only have an alphanumeric called miniLock ID. This ID will allow you to encrypt files for yourself, but also to authorize friends to encrypt files on your behalf... It's difficult to make it simpler, especially since you just have to drag and drop a file into the MiniLock window. to encrypt whatever you want.

How to encrypt files from your browser?

Start by downloading minilock from Google chrome and click on Free. Enter your Google account credentials if you haven't already done so and click Add. You can then open miniLock from the new Google Chrome Application Launcher.

Enter your email address and a passphrase long enough to ensure the robustness of your exchanges, but not too complicated to be able to remember it. miniLock will then generate your private key (which you will never see) and your miniLock ID (the equivalent of a public key). This alphanumeric sequence can be shared with your friends, even by insecure means (e-mail, Skype, etc.). It is even recommended to popularize the system!


Copy and move the file or folder you want to encrypt into the window and enter the miniLock IDs of the friends who are authorized to access it (yours is automatically in this list). The file will take the following form: and can only be decrypted by the minilock users that you have specified.

To decrypt the file, do another copy-move. On your computer, it will not be necessary to enter your passphrase.


miniLock is currently only available on Chrome and ChromeOS. It is free (AGPLv3) and has already been audited by the company Cure53 with the help of the Open Technology Fund.