file-encryptor

To run the code using CLI.

Encrypt

$node app.js encrypt <filename> <secret pass>

Decrypt

$node app.js decrypt <encrypted filename> <secret pass>

to use the module in JavaScript Code.

let Encryptor = require('file-encryptor');
// let encryptor = new Encryptor(Operation, Filename, Password);
// Operation = encrypt/decrypt
let encryptor = new Encryptor('encrypt', 'sample.txt', 'mySecretPassword'); // this will generate sample.txt.encrypt file as the encrypted data

You can also do this

encryptor.process('encrypt', 'sample.txt', 'mySecretPassword');