Line Sorter & Deduplicator
Sort lines alphabetically (A→Z, Z→A), reverse order, shuffle randomly, or remove duplicate lines. A–Z, Z–A, reverse, shuffle, and dedupe modes cover every ordering chore — local processing, free, no signup.
How to Use the Line Sorter & Deduplicator
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Frequently Asked Questions
What sort options are available?
Alphabetical A→Z, reverse Z→A, reverse order (last line first), random shuffle, and duplicate removal. All operations work on one line per entry.
Does it handle case-sensitive sorting?
Sorting uses locale comparison (case-insensitive ordering). For strict byte ordering, normalize case before sorting.
How does deduplication work?
Exact string matching removes duplicate lines. The first occurrence of each unique line is kept, subsequent duplicates are removed.
Can I sort numbers in text lines?
No numeric sort — lines sort as text ('10' sorts before '2'). Pad numbers to equal width first for numeric order.
When using Line Sorter & Deduplicator, is my data stored?
No. All processing happens locally in your browser. No text data is transmitted.
Does Shuffle lose or duplicate lines?
Neither — Shuffle is a Fisher-Yates pass over the full array, a pure permutation: same lines, new order. Contrast with Remove Duplicates, which drops exact-match repeats, and download saves as sorted-lines.txt.
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Last updated October 2026