This free text manipulation tool is useful for webmasters to remove repeating keywords and phrases from meta tag strings, text and to reorder a sequence of words in an alphabetic or reverse alphabetic order: https://www.tracemyip.org/tools/remove-duplicate-words-in-text
Copy and paste your keywords text string with repeating words or duplicate keywords to be reordered into the upper text input window. Hit one of the function buttons to remove repeating or duplicate words from the text. To remove a next batch of repeating words, click on the “reset” button first, then paste the text content with repeating words that you would like to process.