Free Toolkit

Sort Lines A→ZSort lines of text alphabetically from A to Z.

Sort Lines A→Z illustration
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Sort Lines A→Z

Sort lines of text alphabetically from A to Z.

How to Use
1

Paste Lines

Paste text with one item per line to sort.

2

Choose Options

Toggle case-sensitive sorting if needed.

3

View Sorted Lines

See lines sorted alphabetically A to Z.

What Is Sort Lines A→Z?

This tool sorts all lines of text alphabetically from A to Z using locale-aware string comparison. It supports both case-sensitive and case-insensitive sorting modes. Case-insensitive mode (default) treats uppercase and lowercase letters as equal during comparison, which is the most intuitive sorting behavior. This is useful for organizing lists, cleaning up data, sorting names, ordering entries, and preparing text for further processing.

Why Use Our Sort Lines A→Z?

  • Instant alphabetical sorting of any line-based text
  • Toggle case-sensitive or case-insensitive comparison
  • Locale-aware sorting for international characters
  • Handles thousands of lines quickly
  • No limit on input size

Common Use Cases

List Organization

Alphabetically sort lists of names, items, or entries.

Data Cleaning

Sort CSV or TSV data rows for easier review and deduplication.

Glossary Building

Sort dictionary entries or glossary terms alphabetically.

Configuration Files

Alphabetize imports, dependencies, or config entries for consistency.

Technical Guide

The sorting uses JavaScript's Array.sort() with String.localeCompare() for locale-aware alphabetical ordering. In case-insensitive mode, both strings are converted to lowercase before comparison. localeCompare handles international characters correctly, sorting accented characters in their expected positions (é after e, not after z). The sort is stable, meaning equal elements maintain their original relative order. Time complexity is O(n log n) where n is the number of lines.

Tips & Best Practices

  • 1
    Use case-insensitive mode (default) for most sorting tasks
  • 2
    For reverse order, use the Sort Lines Z→A tool
  • 3
    Sort imports or dependencies alphabetically for cleaner code
  • 4
    Combine with Remove Duplicate Lines to sort and deduplicate in two steps
  • 5
    Empty lines sort to the beginning — remove them first if needed

Related Tools

Sort Lines Z→A

Sort lines of text in reverse alphabetical order from Z to A.

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Sort Lines by Length

Sort lines of text by their character length, shortest or longest first.

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Remove Duplicate Lines

Remove duplicate lines from text, keeping unique lines only.

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Remove Empty Lines

Remove blank lines and whitespace-only lines from text.

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Add Line Numbers

Add sequential line numbers to each line of text.

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Word Counter

Count words, unique words, characters, and see word frequency in any text.

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Frequently Asked Questions

QIs the sorting case-sensitive by default?
No, it defaults to case-insensitive sorting where "Apple" and "apple" are treated as equal. Toggle the option for case-sensitive sorting.
QHow are numbers sorted?
Numbers are sorted as strings: "10" comes before "2" alphabetically. For numeric sorting, you would need a numeric sort tool.
QDoes it handle international characters?
Yes, it uses locale-aware comparison so accented characters (é, ñ, ü) sort correctly.
QWhat happens to blank lines?
Blank lines sort to the top of the list since empty strings come before any character.
QIs the sort stable?
Yes, lines that compare as equal maintain their original relative order.

About Sort Lines A→Z

Sort Lines A→Z is a free online tool from FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration required. No ads. Just fast, reliable tools.