Splits your text into items — either whole lines or individual words — and removes duplicates, or builds a frequency table showing how many times each item occurs. You can ignore case when comparing and trim leading and trailing whitespace so that near-identical entries collapse together.
Sort the output by frequency (high to low or low to high), alphabetically, or keep the original order. This is handy for cleaning up lists, finding the most common words, or building word-frequency reports. Everything runs locally.