Sort Lines by Length

The Sort Lines by Length tool is a free online utility that reorders the lines of your text based on how many characters each line contains. Instead of sorting alphabetically, it arranges your list from shortest to longest, or the other way round, so you can quickly see the smallest and largest entries at a glance.

It is useful for developers inspecting log lines, marketers reviewing headline variants, and anyone comparing entries by size. Sorting by length surfaces outliers immediately: the longest URLs, the shortest keywords, or the entries that are unusually far from the typical length in your list.

Everything runs inside your browser using JavaScript. The tool splits your text on line breaks, measures the character length of each line, and sorts accordingly, using an optional alphabetical comparison to break ties between lines of equal length. No text is uploaded, so your data stays private on your own device.

Features

• Sorts every line by its character length in either ascending or descending order.
• An alphabetical tiebreak option keeps lines of equal length in predictable A-to-Z order.
• An option ignores empty lines so blank rows do not clutter the top of an ascending sort.
• Length is measured per character, so spaces and punctuation count exactly as they appear.
• Live statistics show how many lines were sorted plus the shortest and longest line lengths.
• Line splitting recognises Windows CRLF, classic Mac CR and Unix LF endings for consistent results.
• Runs fully offline in your browser with no sign-up, no upload and no limit on input size.

How to use Sort Lines by Length

1. Paste your list or text into the input box, or upload a plain text file to load its contents.
2. Choose ascending order for shortest lines first, or descending order for longest lines first.
3. Keep the alphabetical tiebreak enabled so lines of the same length stay in a stable, predictable order.
4. Enable the ignore-empty option if you want blank lines dropped rather than sorted to the top.
5. Copy the sorted result with one click or download it as a plain text file for your next step.

Benefits

• Developers spot the longest and shortest log lines or config entries without scanning the whole file.
• Marketers compare headline and caption variants by length to meet strict character limits.
• SEO specialists find the longest titles or descriptions that risk truncation in search results.
• Data cleaners surface unusually short or long records that may be malformed or incomplete.
• Anyone organising a list gains a length-based view that alphabetical sorting simply cannot provide.

Length sorting is a fast way to audit consistency across a list. When most entries cluster around a similar length, the few that sit far above or below the norm are usually the ones worth checking, whether they are truncated records, overly long headlines, or empty placeholders that slipped into the data.

The alphabetical tiebreak keeps the output deterministic, which matters when you re-run the sort or compare results over time. Without a tiebreak, lines of equal length could appear in any order; with it enabled, equal-length lines are always ordered A to Z, so the same input reliably produces the same output.