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Obfuscate, minify and/or encrypt node modules for private use
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packnode runs node modules through JSMin and encrypts them for private use.

To install packnode, use npm

$ npm install pack

Packing a module

To pack myscript.js using the password pass123, run

$ cat myscript.js | packnode pass123 > packed.js

Encrypted modules can be accessed by calling require(packed).unpack(password);


The following example was packed using

$ packnode pass123 < hello1.js > hello2.js

hello1.js = function () {
    console.log('Hello world!');


exports.unpack=function(p){var d=require("crypto").createDecipher("aes256",p);
eval(d.update(e,"base64","utf8")"utf8"));return exports;}

Both are equivalent

require('./hello1').world();                    //Outputs 'Hello world!'
require('./hello2').unpack('pass123').world();  //Outputs 'Hello world!'


CoffeeScript modules can be packed using

$ cat | coffee -c -s | packnode pass123 > packed.js

To obfuscate code, use the included YUI Compressor v2.4.2 (requires Java)

$ java -jar yui.jar myscript.js | packnode pass123 > packed.js

To specify a custom encryption algorithm or output encoding, use -a and -e

$ packnode -a aes256 -e hex < myscript.js > packed.js has built-in support for unpacking private modules.

To run a packed job, use the -u switch to specify the password

$ -u pass123 myjob
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