Sort Lines
Put lines of text in order — alphabetical, numeric, natural or by length, ascending or descending. Optionally drop duplicates and blank lines. Everything runs in your browser.
About this tool
Sort Lines puts the lines of any text in order — paste a list and choose how it should be sorted.
- Sort by — alpha orders lines lexicographically (A→Z). numeric reads
the leading number on each line and orders by value (so
2comes before10). natural compares digit runs as numbers inside the text, sofile2comes beforefile10. length orders by how long each line is. - Order — asc (ascending) or desc (descending).
- Ignore case — treat upper- and lower-case as equal when comparing.
- Ignore surrounding whitespace — compare lines without their leading and trailing spaces.
- Remove duplicate lines — keep only the first occurrence of each line.
- Remove blank lines — discard empty or whitespace-only lines.
Everything runs locally in your browser via WebAssembly — your text is never uploaded.
Handy for
- Alphabetising a list of names, words, imports or CSS properties.
- Ordering version or file names naturally (
v1,v2,v10). - Sorting numbers, scores or amounts that start each line.
- Tidying a list by removing duplicates and blank lines in one step.
FAQ
What's the difference between numeric and natural sorting?
Numeric parses the number at the start of each line (signs and decimals
work, e.g. -2.5) and orders lines by that value. Natural compares digit runs
anywhere inside the text as numbers, so file2 sorts before file10 while the
letters around the digits are still compared as text.
Where do lines without a number go when I sort numerically?
Lines that don't begin with a number are placed after all the numbered lines (and before them when the order is descending), rather than being dropped or causing an error.
Does "Remove duplicate lines" respect the case and whitespace options?
Yes. Deduplication runs after sorting and uses the same comparison key, so with
Ignore case on, Apple and apple count as one line, and with Ignore
surrounding whitespace on, item and item do too. The first occurrence is
kept and the output reports how many duplicates were removed.
Is there a size limit, and does my list leave my device?
There's no fixed line limit — sorting happens locally in your browser through WebAssembly, so even large lists are processed on your machine and nothing is uploaded.
Developer & Automation Access
Run it from the terminal
Same engine as this page, headless — via the gizza CLI:
gizza tool sort-lines "Paste lines to sort…"New to the CLI? Get gizza →
Open it by URL
Pre-fill and auto-run this tool with query parameters — the names match the API/CLI:
https://gizza.ai/tools/sort-lines/?text=Paste%20lines%20to%20sort%E2%80%A6&method=alpha&order=asc&ignore_case=true&trim=true&unique=true&remove_blank=trueMachine-readable descriptor: tool.json — title + parameters JSON Schema for agents.