Your files stay on your device

Sort and clean up lines

Sort lines, remove duplicates and blank lines, trim spaces, or number them.
Lines to transformTransformLine endingsLFCRLFKeepSortNoneAscendingDescendingTrim trailing whitespaceRemove empty linesNumeric-aware sortNatural numeric sort (embedded numbers)Case-insensitiveDeduplicateReverse orderNumber linesKeep lines containing

Literal substring match (case-insensitive when checked).
Join with (optional)

Empty = keep line breaks.
Filter regex (overrides the literal filter)

Invalid patterns are an error, never ignored.
Prefix / suffix / quote

Applied to every output line, inside the quotes.
Extract column (optional)

Split on a delimiter, keep column N (1-based).
Invert filter (keep NON-matching lines)Paste, drop, or type to begin. Everything stays on this device.

More text tools

- Word & character count (/text/word-count)
- Case converter (/text/case-converter)
All text tools (/text)

Canonical HTML: https://nutter.tools/text/lines/
Markdown version: https://nutter.tools/text/lines/index.md
Plain-text version: https://nutter.tools/text/lines/index.txt
Agent index: https://nutter.tools/llms.txt