Text sorter

Sort, reverse, shuffle and dedupe lines

Options

Collation locale

Alphabetical order is a property of the language, not of the characters. Switch between German and Swedish with the sample loaded to see it.

Lines0 chars

Sorted with Intl.Collator0 chars

"Z" < "a" is true in JavaScript, because < compares UTF-16 code units and ASCII puts every capital before every lowercase letter. A plain sort() therefore gives Apple, Zebra, apple. This tool uses Intl.Collator, which implements the Unicode Collation Algorithm.
Accented letters are worse: "ä" is U+00E4, far above "z", so code-unit order banishes it to the end. Collator places it where the chosen language says it goes.
Shuffle is a Fisher–Yates pass over crypto.getRandomValues with rejection sampling, so every ordering is equally likely. The common sort(() => Math.random() - 0.5) trick is not a shuffle: a comparator that answers differently for the same pair breaks the sort's contract, and the result is biased by whichever algorithm the engine uses.
By length counts code points, so an emoji counts as one character. Ties fall back to the collator so the result is stable and readable.