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About Sort, Shuffle & Reverse Lines Online (A-Z)
This free line tool reorders the lines of any block of text — sort lines alphabetically (A→Z or Z→A), sort lines in natural numeric order, reverse them, or shuffle lines into a random order. It's built for tidying lists, config files, import statements, word lists, and single CSV columns where the order matters but the content shouldn't change.
Natural order is the smart default for mixed text and numbers: it keeps "item2" before "item10" instead of the naive string order that puts "item10" first. Shuffle uses your browser's strong randomness for a genuinely unbiased mix.
Everything runs entirely in your browser. Nothing you paste is uploaded or stored, so it's safe for config snippets, internal lists, and anything you'd rather not send to a server.
Features
- Sort lines alphabetically, ascending (A→Z) or descending (Z→A)
- Natural sort orders embedded numbers correctly (a2 before a10)
- Reverse the order of lines, or shuffle them randomly
- Optional case-sensitive sorting; works completely offline
How to use
- Paste your lines — one item per line — into the input pane.
- Pick an action: Sort A→Z, Sort Z→A, Natural, Reverse, or Shuffle.
- Toggle Case-sensitive if upper- and lowercase should sort separately.
- Copy the reordered result from the output pane.
Frequently asked questions
What is natural sort order?
Natural sort treats runs of digits as numbers, so "file2" sorts before "file10". Plain alphabetical sorting compares character by character and would place "file10" first because "1" is less than "2". Use Natural whenever your lines mix text and numbers.
Does sorting change my line content?
No. Sorting, reversing, and shuffling only reorder whole lines — the text of each line is left exactly as you pasted it, including any leading or trailing spaces.
Is the shuffle truly random?
Yes. It uses a Fisher–Yates shuffle backed by your browser's randomness, which gives every arrangement an equal chance and avoids the bias of naive shuffles. Run Shuffle again for a fresh order.
Does my text get sent anywhere?
No. All processing happens locally in your browser. Your lines never leave your device, so the tool is safe for private lists and config files.
Related tools
Everything runs locally in your browser — your input is never uploaded.