Your files stay on your device
Sort and clean up lines
Sort lines, remove duplicates and blank lines, trim spaces, or number them.
Literal substring match (case-insensitive when checked).
Empty = keep line breaks.
Invalid patterns are an error, never ignored.
Applied to every output line, inside the quotes.
Split on a delimiter, keep column N (1-based).
Paste, drop, or type to begin. Everything stays on this device.