How to use
Paste your text (one line per item), choose options, then click Remove Duplicates. Enable case-insensitive mode to treat "Apple" and "apple" as the same.
FAQ
What counts as a duplicate?
By default, two lines are duplicates if they are exactly identical (byte-for-byte). With case-insensitive mode, "Apple" and "APPLE" are considered duplicates.
Does case sensitivity matter?
Yes, by default. "Hello" and "hello" are different lines unless you enable case-insensitive mode.
How is whitespace handled?
With "Trim whitespace" enabled, leading and trailing spaces are removed before comparison, so " hello " and "hello" are treated as the same line.