Syllable counts and polysyllable counts in Javascript. Try the demo here!

Syllable counts are an important part of calculating many readability metrics, such as the Flesch-Kincaid score and the SMOG grade. Syllabificate was created to facilitate faster and more accurate measurements for these calculations.

Note: Syllabificate is an English language syllable counter. It may not be accurate in other languages.

npm install syllabificate

const syl = require('syllabificate');

Returns the total number of syllables in a string.

syl.countSyllables("Electric slide."); //4

Returns the total number of polysyllables (words with 3 or more syllables) in a string.

syl.countPolys("Electric slide."); //1

Returns both the total number of syllables and the total number of polysyllables as an array: [syllables, polysyllables]. This can be useful if you are calculating multiple metrics.

syl.countSyllablesAndPolys("Electric slide."); //[4, 1]