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Alphabetizer

Sort text lines alphabetically, reverse, or by length

About Alphabetizer

Sorting a list by hand is tedious enough at 10 items and completely impractical at 100. Alphabetizer instantly sorts any line-based list in ascending alphabetical order, descending reverse-alphabetical order, or by line length. It also supports case-insensitive sorting so 'Zebra' and 'apple' sort by letter value rather than ASCII code point (which would put all uppercase words before all lowercase words). A deduplicate-while-sorting option removes any duplicate entries in the same pass. Alphabetizer works on any type of line-delimited content: word lists, city names, product SKUs, HTML option lists, file name inventories, bibliography entries — anything where imposing a consistent sort order makes the content easier to navigate, compare, or publish.

Why use Alphabetizer

A–Z, Z–A, and Length Sorting

Three sort modes cover the most common ordering needs for any line-based list.

Case-Insensitive Alphabetical Sort

Sort 'Zebra', 'apple', and 'Mango' by letter without uppercase entries jumping to the top.

Deduplicate While Sorting

Remove duplicate entries in the same operation so you get a clean, sorted, unique list in one step.

Length-Based Sorting

Sort shortest-to-longest or longest-to-shortest for formatting, typography, or data inspection tasks.

Preserves Original Content

Only the order of lines changes — the content of each line is never modified.

Instant on Any List Size

Sorts thousands of lines in milliseconds using the browser's native sort algorithm.

How to use Alphabetizer

  1. Paste your unsorted list into the input area, one item per line.
  2. Choose your sort order: A–Z, Z–A, or by line length.
  3. Toggle 'Case insensitive' to sort ignoring capitalization.
  4. Toggle 'Remove duplicates' to deduplicate while sorting.
  5. The sorted output appears instantly in the output panel.
  6. Click Copy to copy the sorted list to your clipboard.

When to use Alphabetizer

  • When alphabetizing a bibliography or reference list before submission.
  • When sorting a keyword list for an SEO campaign into alphabetical order for review.
  • When organizing a product catalog, feature list, or menu into alphabetical order for readability.
  • When comparing two lists side-by-side after sorting both alphabetically to spot differences.
  • When sorting a list of CSS class names or HTML attributes into a consistent order for maintainability.
  • When preparing a glossary or index where entries must appear in alphabetical sequence.

Examples

Alphabetize a word list

Input: Mango Apple Zebra Banana apricot

Output: A–Z case-insensitive: Apple apricot Banana Mango Zebra

Sort by line length

Input: Hello Hi Goodbye OK

Output: Shortest first: OK Hi Hello Goodbye

Reverse alphabetical

Input: cat dog bird fish

Output: Z–A: fish dog cat bird

Tips

  • Sort both lists alphabetically before using Text Diff to compare them — the diff output will be cleaner and easier to read.
  • Use length sorting to find your longest and shortest entries quickly — useful for spotting outliers or formatting issues in a dataset.
  • Enable 'deduplicate while sorting' to get a sorted unique list in one pass rather than two separate tool operations.
  • For case-insensitive sorting of mixed-case data, always enable the toggle — otherwise 'Zebra' will sort before 'apple' due to ASCII ordering.
  • To sort a list numerically, prepend zero-padded numbers ('01', '02', '10') and then use alphabetical sort.

Frequently Asked Questions

Does it sort case-insensitively by default?▾
No. The default sort is case-sensitive, which places all uppercase letters before lowercase letters (ASCII order). Enable the case-insensitive toggle for natural alphabetical sorting that treats 'Apple' and 'apple' as equal for comparison purposes.
Does length sorting sort shortest first or longest first?▾
The default length sort puts the shortest lines first. Lines of equal length are sub-sorted alphabetically. A toggle switches to longest-first ordering.
How does it handle numbers in a list?▾
Numbers are sorted as strings, not numerically. '10' sorts before '2' in string order because '1' < '2'. For numeric sorting, pad numbers with leading zeros before sorting.
Does it sort multi-word lines as a whole unit?▾
Yes. Each line is sorted as a single string, so 'New York' sorts by 'N', not by 'Y'. The entire line content is used as the sort key.
Can I sort lines in reverse alphabetical order?▾
Yes. Choose the Z–A option to sort in descending alphabetical order, which places Z entries first and A entries last.
Does sorting modify the content of any line?▾
Never. Only the order of lines changes. The text content of each line is preserved exactly, including any punctuation, capitalization, or special characters.
Can I use it to sort a list of file names?▾
Yes. Paste file names one per line and the alphabetical sort will produce the same ordering you would see in most file explorers with the 'sort by name' option.
Does it handle non-ASCII characters like accented letters?▾
Yes, the sort uses the browser's locale-aware comparison for the case-insensitive mode, which correctly handles accented characters like é, ñ, and ü according to Unicode sorting rules.

Explore the category

Text Reverser Reverse text, lines, or characters per line Random Line Picker Pick one or many random lines from text Text Diff Compare two texts line-by-line Case Converter Convert text between letter cases Lorem Ipsum Generate placeholder Lorem Ipsum text Text Cleaner Remove extra spaces, symbols and more

Glossary

Lexicographic sort
A sort that compares strings character by character using their Unicode code point values. Uppercase letters have lower code points than lowercase letters in ASCII.
Case-insensitive sort
A sort that compares strings after converting them to the same case, so 'Apple' and 'apple' are treated as equivalent.
Stable sort
A sort algorithm that preserves the original relative order of elements that compare as equal. Most modern browser sort implementations are stable.
Natural sort
A sort that handles numbers within strings numerically rather than lexicographically, so '10' sorts after '9' rather than before '2'.
Descending sort
Sorting in reverse order so Z comes before A, or larger values come before smaller values.
Locale-aware sort
A sort that uses language-specific rules for ordering characters, particularly for accented and non-ASCII letters.