MLCrypt

MLCrypt is a console application that you can use to encrypt and decrypt text using the Blowfish algorithm in CBC mode, along with a 448-bit MD5-salted and key-stretched SHA-256 password.

It features straightforward command-line options that can be handled even by those with little experience with the CLI. Only plain text documents are supported.

It's not necessary to go through an installation phase since you can copy the downloaded files anywhere on the disk and fire up MLCrypt directly, without setup.

In this case, you can also keep a copy stored on a USB flash drive to be able to launch the utility on any PC without setup, in order to encrypt and decrypt text.

To use MLCrypt, call its process from a Command Prompt window by entering the file name and extension. The syntax is input.txt output.txt -e | -d.

You have to indicate the name and .txt extension of the document you're trying to encrypt, an output name and the .txt format for the new document that will be created with the encrypted text, along with -e for encryption or -d for decryption.

If the output file already exists, MLCrypt asks for permission to overwrite it. The input and output files must exist in the same directory as the program. Otherwise, you have to set their destination paths.

During encryption, the security app asks you to enter and confirm the password. It's not displayed on the screen in case someone is looking over your shoulder, but rest assured that the key is recognized by the program.

It's generally recommended to create a complex password made from a random combination of upper and lower case letters, numbers, and symbols. This way, you're making it very difficult for someone to crack it using brute force.

MLCrypt worked smoothly on Windows 10 in our test. It encrypted and decrypted text documents swiftly while using minimal system resources. Thanks to its intuitive commands, it can be used by anyone interested in a text encryption tool.