What does case-insensitive mean?

When enabled, uppercase and lowercase letters are treated equally, so "Banana" and "apple" sort as if they were "banana" and "apple". When disabled, uppercase letters sort before lowercase in standard ASCII order.

Does it remove blank lines?

Blank lines are preserved by default. Enable "Remove duplicates" to collapse multiple blank lines into one, since they are all identical.

How many lines can I sort?

The tool runs entirely in your browser with no line limit. Very large inputs (hundreds of thousands of lines) may be slow depending on your device.

Does it preserve the original line endings?

The output uses standard line breaks. Paste the result into any text editor or spreadsheet to continue working.

Yes, but the sort is lexicographic (dictionary order), not numeric. So 10 comes before 9. For numeric sorting, use a dedicated number-sort tool.

Alphabetical Line Sorter

Paste any list of lines, choose A-Z or Z-A order with optional deduplication, and get your sorted output instantly.

Input & Options

Lines to sort

Sort Direction

A → Z Ascending

Z → A Descending

Options

Case-insensitive sort "Banana" and "apple" sort as if both lowercase

Remove duplicate lines Keep only the first occurrence of each line

Trim whitespace Strip leading and trailing spaces per line

Sorted Output

Paste lines on the left and click Sort

Supports lists of any size — names, keywords, URLs, and more

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Summary

Sort any list of lines into alphabetical order instantly. Choose ascending (A-Z) or descending (Z-A), toggle case sensitivity, and optionally remove duplicate lines — all client-side with no data sent to a server.

How it works

The tool splits your input on newlines, applies JavaScript's Array.prototype.sort() with an optional case-insensitive comparator, deduplicates if requested, then joins the result back into a single string you can copy.

Use cases

Alphabetize a list of names or keywords for a document.
Sort product names for import into a spreadsheet.
Organize a list of URLs or tags before publishing.
Clean up a glossary or index by putting entries in order.

Frequently Asked Questions

Last updated: 2026-05-23 · Reviewed by Nham Vu