Merge Text Lists
Combine two lists into one, with an option to remove duplicates.
Result
Preguntas frecuentes
Does it keep the original order of items?
Yes, list A's items come first followed by list B's, in the order you typed or pasted them. Turning on "remove duplicates" only drops later repeats, it doesn't reorder anything.
Is "remove duplicates" case-sensitive?
Yes, items are compared by their exact text, so "Apple" and "apple" are treated as two different items and both kept.
Is my data sent anywhere?
No, this runs entirely in your browser using plain JavaScript. Nothing is sent to a server.