By comparing every line in your text, this tool will identify and eliminate any duplicate lines. The clean individual text lines can then be pasted back into a file for storing.
After all the duplicate lines have been eliminated, I've also given you the choice to alphabetize the lines. If necessary, you can also have the remaining lines sorted automatically in reverse.
Note: Despite the form below appearing to be small, you can paste large amounts of text into it to have your duplicate lines eliminated automatically. No issue.