A word contains many characters (even including emoji). Words are separated by spaces, hyphens, punctuation marks... A word that does not belong to the list of 3000 familiar words. A word that appears only once in the whole text. Any printable or non-printable like spaces are counted as a character, which constitues the character count. A sentence contains many words and ends with a full stop or a punctuation mark. A paragraph consists of many sentences and ends with a new-line character. The number of syllables in a word is calculated based on the vowel pattern in the word. This number can not be guaranteed 100% accurate because there are many grammar rules and nuances, but it is pretty close. Thus, this metric is appropriate when the demand for accuracy is not very strict. The total length of all the words divided by the number of words. The number of words divided by the number of sentences. An estimated readability level measured by the Dale-Chall Score Formula. Estimated based on an average reading time of 200 words per minute. Estimated based on an average speaking time of 125 words per minute. Currently we support the maximum size of 10MB for every file. The tool accepts files in a variety of formats, including .txt, .pdf, .doc, docx, xlsx, pptx, csv, log, html, xml, js, php. It works best with text format files, we might extend the list if need arises. Besides, we do not keep your files in our server, they get deleted immediately after processing.