What the Letter Counter measures
The tool reports several counts at once. Characters is the total length including spaces and punctuation, while characters without spaces strips out every whitespace character. Letters counts only alphabetic characters, ignoring numbers and symbols. Words, sentences and paragraphs are detected from spacing and punctuation, and spaces and lines round out the picture.
Alongside these totals, the letter-frequency chart ranks every letter from most to least common in your text, with a bar showing its relative share. It is a quick way to spot overused letters, check a pangram, or study distributions for puzzles and ciphers.