This is client side library extracted from natural language processing library for node
https://github.com/NaturalNode/natural
You just need to include natural.js in your project and can use following libraries from natural library.
Now you can access following object from natural.
SoundEx Metaphone DoubleMetaphone PorterStemmer PorterStemmerRu LancasterStemmer AggressiveTokenizerRu AggressiveTokenizer RegexpTokenizer WordTokenizer WordPunctTokenizer TreebankWordTokenizer NounInflector PresentVerbInflector CountInflector TfIdf SentenceAnalyzer NGrams JaroWinklerDistance LevenshteinDistance DiceCoefficient
All these objects are inside namespace natural
You can use SoundEx using
if(natural.SoundEx.compare('phonetics', 'fonetix')) console.log('they sound alike!');
For more examples visit natural readme
It doesn't yet support Classifiers and Wordnet.