Input
Apple apple Apple
Expected result
Apple apple
Remove Duplicate Lines
Keep the first copy of each line.
01 InputUpdates as you type
02 ResultOn your device
Enter a value to see the result.
How to use
Paste one item per line. Optionally ignore surrounding spaces or letter case when comparing lines. The first matching line is kept unchanged.
Good to know
Up to one million characters. Preserves original order and the first blank line. Line endings are normalized to LF; comparison options do not rewrite retained lines.
Worked examples
Input
Apple apple Apple Ignore case when comparing
Expected result
Apple