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Order Text Lines by Character Length Sort lines of text by their character length, shortest or longest first.

Sort Lines by Length illustration
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Sort Lines by Length

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

1

Paste Lines

Enter text with one item per line.

2

Choose Order

Select shortest-first or longest-first ordering.

3

View Sorted Lines

See lines ordered by their character length.

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What Is Sort Lines by Length?

A Sort Lines by Length is a text processing tool that rearranges lines of text based on the number of characters in each line, allowing users to sort by length rather than alphabetical order. Developers and data analysts use it to identify patterns and anomalies in large datasets, where sorting lines by character count helps reveal trends or outliers. One specific problem it solves is finding extremely long or short lines that may indicate errors or unusual data points.

The tool's ability to arrange lines shortest to longest or longest to shortest makes it a useful utility for text analysis tasks, such as examining line length distributions in source code files. What makes this implementation different is its interactive order selection feature, which enables users to switch between ascending and descending sort orders using a dropdown menu, with options labeled "Shortest first" and "Longest first". It also accurately counts all characters in each line, including spaces and special characters, ensuring that the sort by length operation produces correct results.

It supports sorting text by line length with precise control over the output, allowing users to inspect and compare the rearranged lines. For example, when sorting a list of strings using this line length sorter, it will correctly place shorter strings like "hello" before longer ones like "this is a test", demonstrating its effectiveness as an order by string length utility.

Why Use Sort Lines by Length?

  • Sort by length instead of alphabetical order
  • Choose ascending (shortest first) or descending (longest first)
  • Find shortest and longest lines quickly
  • Useful for data analysis and pattern detection
  • Handles any text content

Common Use Cases

Data Analysis

Find unusually short or long entries in datasets by sorting by length.

CSS Optimization

Sort CSS selectors by length to identify overly long or complex selectors.

Word Games

Sort word lists by length for crossword puzzles or word games.

Content Audit

Find the shortest and longest titles, descriptions, or entries in a content list.

Technical Guide

Length sorting compares line lengths using a simple numeric comparator: (a, b) => a.length - b.length for ascending or (a, b) => b.length - a.length for descending. This is a pure numeric comparison, so it's faster than locale-aware string comparison. The sort is stable — lines of equal length maintain their original relative order. Time complexity is O(n log n). Length is measured in JavaScript string length units (UTF-16 code units), which may differ from visible character count for emoji and some international characters.

Tips & Best Practices

  • 1
    Shortest-first sorting quickly reveals empty or near-empty lines
  • 2
    Longest-first helps identify lines that may need truncation or wrapping
  • 3
    For equal-length lines, original order is preserved
  • 4
    Combine with line numbers to track original positions
  • 5
    Use to find outliers in datasets that should have consistent entry lengths

Related Tools

Frequently Asked Questions

Q How is length measured?
Length counts all characters in the line including spaces, punctuation, and special characters.
Q How are equal-length lines ordered?
Lines with the same length keep their original order relative to each other (stable sort).
Q Are blank lines sorted too?
Yes, blank lines have length 0 and sort to the beginning in shortest-first mode.
Q Does it count Unicode correctly?
It uses JavaScript string length, so most characters count as 1 but some emoji count as 2.
Q Can I sort by word count instead?
This tool sorts by character length. Word-count sorting would need a different approach.

About This Tool

Sort Lines by Length is a free online tool by FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration or installation required.