Letter and number count (alphanumeric characters)
Average sentence length in words
Average word length in characters
Total character count including whitespace and punctuation
Character count excluding whitespace
Flesch-Kincaid Grade Level score (approximate U.S. school grade level needed to understand the text). Subject to the same syllable-estimate accuracy limits as fleschReadingEase.
Flesch Reading Ease score (higher is easier to read; roughly 0-100, though the formula can produce values outside that range for unusual text). Estimated from word/sentence counts and a syllable-count heuristic -- see estimateSyllables's documentation for its known accuracy limits.
Letter count (only alphabetic characters)
Paragraph count in the text (separated by 2+ newlines)
Estimated reading time as formatted string (e.g., "2 min 30 sec")
Estimated reading time in seconds (based on average reading speed)
Sentence count in the text
Word count in the text
Text statistics interface containing various metrics about text